Tentukan nilai yg belum diketahui supaya setiap pernyataan berikut a)6/24 = .../21 = .../28 b).../20 = .../25 = 6/30 c).../27 = 8/36 = .../63 d).../8 = 15/... =

a. 6/24 = x/21 = y/28

6/24 = x/21
x = (6 × 21) ÷ 24
x = 21/4

6/24 = y/28
y = (6 × 28) ÷ 24
y = 7

b. x/20 = y/25 = 6/30

6/30 = x/20
x = (6 × 20) ÷ 30
x = 4

6/30 = y/25
y = (6 × 25) ÷ 30
y = 5

c. x/27 = 8/36 = y/63

8/36 = x/27
x = (8 × 27) ÷ 36
x = 6

8/36 = y/63
y = (8 × 63) ÷ 36
y = 6 2/9

d. x/8 = 15/y = 24/32

24/32 = x/8
x = (24 × 8) ÷ 2
x = 6

24/32 = 15/y
y = (15 × 32) ÷ 24
y = 20