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Finding the Fourth Proportional to 48,914.60, 73,371.90 and 39,000.20

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Solution

The fourth proportional to 48,914.60, 73,371.90 and 39,000.20 is: 58,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,914.60 : 73,371.90 = 39,000.20 : x
  2. Step 2: Convert to fraction form
    48,914.60/73,371.90 = 39,000.20/x
  3. Step 3: Cross multiply
    48,914.60x = 73,371.90 × 39,000.20
  4. Step 4: Simplify right side
    48,914.60x = 2,861,518,774.38
  5. Step 5: Solve for x
    x = 2,861,518,774.38/48,914.60
  6. Step 6: Final answer
    x = 58,500.30

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Similar ratio
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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.