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Finding the Fourth Proportional to 31,337.46, 47,013.12 and 15,551.10

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Solution

The fourth proportional to 31,337.46, 47,013.12 and 15,551.10 is: 23,330.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,337.46 : 47,013.12 = 15,551.10 : x
  2. Step 2: Convert to fraction form
    31,337.46/47,013.12 = 15,551.10/x
  3. Step 3: Cross multiply
    31,337.46x = 47,013.12 × 15,551.10
  4. Step 4: Simplify right side
    31,337.46x = 731,105,730.43
  5. Step 5: Solve for x
    x = 731,105,730.43/31,337.46
  6. Step 6: Final answer
    x = 23,330.09

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1.5x scale

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.