If Dean takes 9 hours to finish the marathon, it takes Micah 2/3 * 9 hours = <<9*2/3=6>>6 hours to finish the marathon.

It takes Jake 1/3 * 6 hours = <<1/3*6=2>>2 more hours to finish the marathon than Micah.

Jake takes a total of 6 hours + 2 hours = <<6+2=8>>8 hours to finish the marathon.

Micah, Dean, and Jake take a total of 8 hours + 6 hours + 9 hours = <<8+6+9=23>>23 hours to finish the marathon.

# Answer

23
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Micah, Dean, and Jake are all training for a marathon organized by a local NGO to support children in their town who have cancer. Micah runs 2/3 times as fast as Dean. It takes Jake 1/3 times more time to finish the marathon than it takes Mica. If Dean takes 9 hours, what's the total time the three take to complete the marathon?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
23
Micah, Dean, and Jake are all training for a marathon organized by a local NGO to support children in their town who have cancer. Micah runs 2/3 times as fast as Dean. It takes Jake 1/3 times more time to finish the marathon than it takes Mica. If Dean takes 9 hours, what's the total time the three take to complete the marathon?
train