What is x when 75 divided by x equals 19?

To find the answer, just divide the dividend by the quotient: 75 ÷ 19 = 3.9473684210526

To prove this, let's compute 75 divided by 3.9473684210526: $\frac{75}{3.9473684210526} = 19$

How does it work?

Asking what the value of x could be when 75 divided by x gives a result of 19, is equivalent to solving the following equation:

$\frac{75}{x} = 19$

Multiply both sides by x: $\frac{75 x}{x} = 19 x$
$\frac{75 x}{x}$ is equivalent to $\frac{x}{x} \times 75$ , which simplifies to $1 \times 75$ (or just $75$ ).
Thus, the equation becomes: $75 = 19 x$
To find x, divide both sides by 19: $\frac{75}{19} = \frac{19 x}{19}$
Which gives, after simplification: $3.9473684210526 = x$ (or $x = 3.9473684210526$ )

So, if the dividend is 75 and the quotient is 19, the divisor is 3.9473684210526.