Bishop73

Correction: While the 10,000 miles was accurate, Atreyu even asks if Falcor took him the whole 10,000 miles, that's the distance he would have had to travel on foot. Generally when people talk about how far away something is, they're talking about the distance they have to travel, which is rarely in a straight line. Falcor says, he only took 9,891 miles, but then adds "as the dragon flies." This is the same as saying "as the crow flies." New York to Los Angeles might only be 2,450 miles apart, "as the crow flies", but the distance you drive might be 2,900 miles. That means Atreyu was lucky that he got to travel in a straight line.

Bishop73

Correction: Morla is rounding up - it sounds better (and more imposing) to say "10,000 miles" than "9,896 miles exactly". Besides, this is a medieval fantasy setting. Accurate measuring by surveyors is not something that is usually done. Most people would deal in estimates, Falcor seems to be the exception to this.

Twotall

Correction: The gold sphinx pair are not the Southern Oracle - they're the first gate to the Oracle. The Southern Oracle are the blue sphinx pair. Atreyu passes through two gates on the way there, with numerous cuts in between. The second gate has a blizzard going on whereas the weather is clear at the first gate and Oracle. Hence, it's reasonable to assume there's some distance between the two gates and the Oracle.