For an employee training, the employee to instructor ratio is 24 to 2. If there are 23 instructors for the training, how many employees participated in the training?
If the ratio of employees to instructors is 24 to 2, then for every 2 instructors, there are 24 employees.
Therefore, the number of groups of 2 instructors is 23 / 2 = <<23/2=11.5>>11.5 groups.
This means there are 11.5 * 24 = <<11.5*24=276>>276 employees participated in the training. Answer: \boxed{276}.