Решаем пропорцию:
1) x/48 = 5/6;
x = (48 * 5)/6 = 8 * 5 = 40;
2) 28/x = 4/9;
x = (28 * 9)/4 = 7 * 9 = 63;
3) 8/15 = 12/x;
x = (15 * 12)/8 = 180/8 = 22.5.
Решаем пропорцию:
1) x/48 = 5/6;
x = (48 * 5)/6 = 8 * 5 = 40;
2) 28/x = 4/9;
x = (28 * 9)/4 = 7 * 9 = 63;
3) 8/15 = 12/x;
x = (15 * 12)/8 = 180/8 = 22.5.