alguien me ayuda??.. ...
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Respuestas
Explicación paso a paso:
Deje que el número que falta sea "x".
1 / 2 = 4 / x
1 * x = 2 * 4
x = 8
1 / 2 = 4 / 8
3 / 6 = 1 / x
1 / 2 = 1 / x
x = 2
3 / 6 = 1 / 2
2 / 3 = 10 / x
2 * x = 3 * 10
2x = 30
x = 30 / 2
x = 15
2 / 3 = 10 / 15
3 / 5 = 21 / x
3 * x = 5 * 21
3x = 105
x = 105 / 3
x = 35
3 / 5 = 21 / 35
4 / 10 = 2 / x
2 / 5 = 2 / x
2 * x = 5 * 2
2x = 10
x = 10 / 2
x = 5
4 / 10 = 2 / 5
15 / 20 = x / 4
x * 20 = 15 * 4
20x = 60
x = 60 / 20
x = 3
15 / 20 = 3 / 5
4 / 9 = x / 18
9 * x = 4 * 18
9x = 72
x = 72 / 9
x = 8
4 / 9 = 8 / 18
12 / 16 = x / 4
16 * x = 12 * 4
16x = 48
x = 48 / 16
x = 3
12 / 16 = 3 / 4
49 / 21 = x / 3
7 / 3 = x / 3
x = 7
49 / 21 = 7 / 3
7 / 3 = x / 21
3 * x = 7 * 21
3x = 147
x = 147 / 3
x = 49
7 / 3 = 49 / 21
25 / 35 = x / 7
5 / 7 = x / 7
x = 5
25 / 35 = 5 / 7
2 / 4 = 16 / x
1 / 2 = 16 / x
1 * x = 2 * 16
x = 32
2 / 4 = 16 / 32