I got a knot in my brain and can't think of this - I'm sure it's quite simple and I'll be like "duh!" once someone points it out to me...
So the problem is as follows:
An audio file is 30 seconds long. That's 100% of the audio file.
If I play the file at 50% of it's speed it'll be 60 seconds long.
At what percentage do I need to play the song to make it X seconds long? (I am looking for 46.56)
Or in other words if 30 is to 100 the same as 60 is to 50, then what would 46.56 be equivalent to?