Solution:दिया है:ab = 1, bc = 1/2, cd = 6, de = 2, ef = 1/2
ad : bc : cf के लिए,
ad = (ab × cd)/(bc) = (1 × 6)/(1/2) = 12
bc = (bc × de) / cd = ((1/2)×2) / 6
= 1/6
cf = (cd × ef) / de = ((6 × (1/2) / 2 = 3/2
∴ ad: bc; cf = 12: 1/6 : 3/2
= 6 × 12 : 6 × 1/6 : 6 × 3/2
= 72 : 1 : 9