Question

The mean proportion between 9 and 25 is​

Answer 1

Answer:

9:x::x:25

x²=25×9

x²=5²×3²

x²=(5×3)²

x=3×5

x=15

Answer 2

Answer:

b^2=ac

b^2= 9×25

b^2= 225

b= 15

Hence, the mean proportion between 9and 25 is 15