4 / x = 5 / 80 7.2:12 + 9 / 1: x 2.5 + 6 / 15.6:2.88 + 2.6: X solution ratio

4 / x = 5 / 80 7.2:12 + 9 / 1: x 2.5 + 6 / 15.6:2.88 + 2.6: X solution ratio


4 of x = 5 of 80 7.2:12 = 9 of 1: x 2.5 of 1.5 = x of 6 15.6:2.88 = 2.6: X
5x = 4 * 80 7.2x = 1 / 12 * 9 1.5x = 2.5 * 6 15.6x = 2.88 * 2.6
5x = 320 7.2x = 4 / 3 1.5x = 15 15.6x = 7.488
X = 64 x = 5 / 27 x = 10 x = 0.48