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Finding the Fourth Proportional to 52,167.70, 78,251.55 and 15,231.70

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Solution

The fourth proportional to 52,167.70, 78,251.55 and 15,231.70 is: 22,847.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,167.70 : 78,251.55 = 15,231.70 : x
  2. Step 2: Convert to fraction form
    52,167.70/78,251.55 = 15,231.70/x
  3. Step 3: Cross multiply
    52,167.70x = 78,251.55 × 15,231.70
  4. Step 4: Simplify right side
    52,167.70x = 1,191,904,134.14
  5. Step 5: Solve for x
    x = 1,191,904,134.14/52,167.70
  6. Step 6: Final answer
    x = 22,847.55

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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.