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Finding the Fourth Proportional to 67,399.72, 92,945.17 and 52,286.87

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Solution

The fourth proportional to 67,399.72, 92,945.17 and 52,286.87 is: 72,104.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,399.72 : 92,945.17 = 52,286.87 : x
  2. Step 2: Convert to fraction form
    67,399.72/92,945.17 = 52,286.87/x
  3. Step 3: Cross multiply
    67,399.72x = 92,945.17 × 52,286.87
  4. Step 4: Simplify right side
    67,399.72x = 4,859,812,020.92
  5. Step 5: Solve for x
    x = 4,859,812,020.92/67,399.72
  6. Step 6: Final answer
    x = 72,104.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.