Let the unknown number equal X. We are given that the product of X and 3.4 is equal to 176.8. The term "product" implies the use of multiplication. With this knowledge, we can represent the problem using the following formula:
3.4x = 176.8
Now divide both sides of the equation by 3.4:
x = 52
We have now proven that Jen is thinking of the number 52.