Найдите неизвестный член пропорции 1)x:6.3=15/7:1.25 2)24/5:0.8=x:7/6 3)x:35/8=1.5:21/16 4)x:48/5=8/3:16/15

1.х/6,3 = 7/1,25х : 63/10 = 7 : 125/100х : 63/10 = 7 * 100/125х: 63/10 = 700/125х = 700/125 * 63/10х = 70/125 * 63х = 4410/125х = 35,282.24/5 : 0,8 = х:7/624/5 : 8/10 = х: 7/624/5 * 10/8 = х : 7/63/1 * 2/1 = х : 7/66 = х : 7/6х = 6 * 7/6х = 73.х:35/8 = 1,5 : 21/16х:35/8 = 15/10 : 21/16х : 35/8 = 15/10 * 16/21х: 35/8 = 5/5 * 8/3х:35/8 = 8/3х = 8/3 * 35/8х = 35/34.х: 48/5 = 8/3 : 16/15х : 48/5 = 8/3 * 15/16х : 48/5 = 1/1 * 5/2х : 48/5 = 5/2х = 5/2 * 48/5х = 1/1 * 24/1х = 24