What percent of 24 is 18 set up a percent proportion and solve

Okie, I don't know what you want to "solve" for but I can help you find the percent of 24 in which is 18. So basically, you want to take the number that the question number (i dont know if that made sense) which is 18 essentially. And you divide it from the number that it is out of which is 24. Then multiply it by 100 to find the percent from the decimal. 
18 / 24 = .75 x 100 = 75 %
So, 18 is 75% of 24.
I hope this helps :-)

The radiation of the fire causes the saucepan to heat up. the conduction of the saucepan then to distribute the heat over the saucepan and to give heat to the water. the convection of the water distributing the heat within the water, till all the water is boiling