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Finding the Fourth Proportional to 1,711.83, 2,572.38 and 932.40

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Solution

The fourth proportional to 1,711.83, 2,572.38 and 932.40 is: 1,401.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.83 : 2,572.38 = 932.40 : x
  2. Step 2: Convert to fraction form
    1,711.83/2,572.38 = 932.40/x
  3. Step 3: Cross multiply
    1,711.83x = 2,572.38 × 932.40
  4. Step 4: Simplify right side
    1,711.83x = 2,398,487.11
  5. Step 5: Solve for x
    x = 2,398,487.11/1,711.83
  6. Step 6: Final answer
    x = 1,401.12

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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.