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Finding the Fourth Proportional to 38,655.87, 57,929.12 and 16,446.88

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Solution

The fourth proportional to 38,655.87, 57,929.12 and 16,446.88 is: 24,647.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,655.87 : 57,929.12 = 16,446.88 : x
  2. Step 2: Convert to fraction form
    38,655.87/57,929.12 = 16,446.88/x
  3. Step 3: Cross multiply
    38,655.87x = 57,929.12 × 16,446.88
  4. Step 4: Simplify right side
    38,655.87x = 952,753,337.00
  5. Step 5: Solve for x
    x = 952,753,337.00/38,655.87
  6. Step 6: Final answer
    x = 24,647.06

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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.