Question

29. Find the value of x in the following proportion
(a) 3:7::x:21 (b) x:45 :: 4:36 ​

Answer 1

Answer:

a.1:1

Step-by-step explanation:

3:7/x:21

now cancel 7 and 21

Answer 2

Answer:

1. 3:7::7:21

2. 3:45::4:36