Thetford Aria Classic Toilet Floor Flange

I purchased a new toilet, Thetford Aria Classic. The holes don't match up with the 7inch floor flange. I believe I should measure from one bolt hole to the other. If so, I came up with 9 inches. They included a 7 inch which I already had on the other Thetford (cheap plastic toilet).

I have sent emails to Thetford twice in the last week with no response. Has anyone had experience with this?

Thanks in advance.