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Finding the Fourth Proportional to 39,251.80, 58,877.70 and 15,866.20

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Solution

The fourth proportional to 39,251.80, 58,877.70 and 15,866.20 is: 23,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,251.80 : 58,877.70 = 15,866.20 : x
  2. Step 2: Convert to fraction form
    39,251.80/58,877.70 = 15,866.20/x
  3. Step 3: Cross multiply
    39,251.80x = 58,877.70 × 15,866.20
  4. Step 4: Simplify right side
    39,251.80x = 934,165,363.74
  5. Step 5: Solve for x
    x = 934,165,363.74/39,251.80
  6. Step 6: Final answer
    x = 23,799.30

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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.