Mrs. Stevens has a full classroom of students with the same number of students in each row. Patricia is sitting in the 2nd row from the front of the room and the 4th row from the back. She is also the 4th student from the left of the room and the 3rd student from the right. How many students are there in Mrs. Stevens' class?
Let's call the number of students in each row $x$.
If Patricia is sitting in the 2nd row from the front of the room, there are $(x-2)$ rows in front of her.
Similarly, if she is sitting in the 4th row from the back, there are $(x-4)$ rows behind her.
If Patricia is the 4th student from the left, there are 3 students to her left, which means there are a total of $3x$ students to the left of her.
Similarly, if she is the 3rd student from the right, there are 2 students to her right, which means there are a total of $2x$ students to the right of her.
Since there is the same number of students in each row, there must be $(x-2) + 1 + (x-4)$ rows in total.
Thus, there are $x-1$ rows in total.
The total number of students in the class is the product of the number of rows and the number of students in each row, which is $(x-1)x$.
Therefore, the number of students in Mrs. Stevens' class is $(x-1)x$.