Question

find the ratio of third propertion of12:30 and mean propertion of 9:25

Answer 1

Step-by-step explanation:

a). 12 : 30 : x

12 = 30

30 x

12x = 30 * 30

12x = 900

x = 900

12

x = 75

12 : 30 : 75

b). 9 : x : 25

9 = x

x 25

x^2 = 9*25

x^2 = 225

x = square root of 225

x = 15

9 : 15 : 25