It's often mentioned that Dvořák's Ninth, 3rd movement has similarities to Beethoven's Ninth, 2nd movement and I agree.

But I believe there's another similarity to another Ninth, namely Schubert's. It's not like it's identical but I find the middle section of the third movement in both symphonies being a bit similar:

Dvořák
https://youtu.be/9_BlhOJp8RY?t=1645

Schubert
https://youtu.be/kNocKxKd8-I?t=2300

Interestingly Schubert quotes Beethoven's Ninth in the last movement.
And then Dvořák may be showing his appreciation with both these masterpieces in his own Ninth...
But I believe Schubert's The Great had the number eight in the 19th century.