Finding the Fourth Proportional to 13,908.16, 20,857.92 and 4,672
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Solution
The fourth proportional to 13,908.16, 20,857.92 and 4,672 is: 7,006.55
Step by Step Solution
- Step 1: Write the proportion equation
13,908.16 : 20,857.92 = 4,672 : x - Step 2: Convert to fraction form
13,908.16/20,857.92 = 4,672/x - Step 3: Cross multiply
13,908.16x = 20,857.92 × 4,672 - Step 4: Simplify right side
13,908.16x = 97,448,202.24 - Step 5: Solve for x
x = 97,448,202.24/13,908.16 - Step 6: Final answer
x = 7,006.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.