Question

15. Find a if 25, 35 and a are in proportion.
16. Find x if 48, 36 and x are in proportion.​

Answer 1

Answer:

15. 25 : 35= 35 : a

=> 25/35=35/a

=> 25a=35×35

=> a=35×35/25

=> a=49

16. 48 : 36 = 36 : x

=> 48/36=36/x

=> 48x=36×36

=> x=36×36/48

=> x=3×9

=> x=27

Answer 2

Step-by-step explanation:

Here's the solution.

Hope it will help you.