To find equivalent ratios, divide all three terms by the same number.<br><br>
• The last term changes from 18 to 6, so divide by 18 ÷ 6 = 3.<br>
• 39 ÷ 3 = 13<br>
• 24 ÷ 3 = 8<br>
• 18 ÷ 3 = 6<br><br>
Final Answer: 13 : 8 : 6