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Finding the Fourth Proportional to 52,712.57, 79,057.44 and 16,691.87

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Solution

The fourth proportional to 52,712.57, 79,057.44 and 16,691.87 is: 25,034.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,712.57 : 79,057.44 = 16,691.87 : x
  2. Step 2: Convert to fraction form
    52,712.57/79,057.44 = 16,691.87/x
  3. Step 3: Cross multiply
    52,712.57x = 79,057.44 × 16,691.87
  4. Step 4: Simplify right side
    52,712.57x = 1,319,616,511.01
  5. Step 5: Solve for x
    x = 1,319,616,511.01/52,712.57
  6. Step 6: Final answer
    x = 25,034.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.