What is x when 74 divided by x equals 21?

To find the answer, just divide the dividend by the quotient: 74 ÷ 21 = 3.5238095238095

To prove this, let's compute 74 divided by 3.5238095238095: $\frac{74}{3.5238095238095} = 21$

How does it work?

Asking what the value of x could be when 74 divided by x gives a result of 21, is equivalent to solving the following equation:

$\frac{74}{x} = 21$

Multiply both sides by x: $\frac{74 x}{x} = 21 x$
$\frac{74 x}{x}$ is equivalent to $\frac{x}{x} \times 74$ , which simplifies to $1 \times 74$ (or just $74$ ).
Thus, the equation becomes: $74 = 21 x$
To find x, divide both sides by 21: $\frac{74}{21} = \frac{21 x}{21}$
Which gives, after simplification: $3.5238095238095 = x$ (or $x = 3.5238095238095$ )

So, if the dividend is 74 and the quotient is 21, the divisor is 3.5238095238095.