Х : 4 3/8 = 1,5 : 1 5/16
х : 35/8 = 15/10 : 21/16
х * 21/16 = 35/8 * 15/10 - свойство пропорции
21/16х = 105/16
х = 105/16 : 21/16 = 105/16 * 16/21 = 105/21
х = 5
х : 9 3/5 = 2 2/3 : 1 1/15
х : 48/5 = 8/3 : 16/15
х * 16/15 = 48/5 * 8/3 - свойство пропорции
16/15х = 128/5
х = 128/5 : 16/15 = 128/5 * 15/16
х = 24