Of the students attending a school party, \(60\%\) of the students are girls, and \(40\%\) of the students like to dance. After these students are joined by \(20\) more boy students, all of whom like to dance, the party is now \(58\%\) girls. How many students now at the party like to dance?

(第二十六届AIME1 2008 第1题)