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Finding the Fourth Proportional to 60,512.60, 90,768.90 and 38,423.90

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Solution

The fourth proportional to 60,512.60, 90,768.90 and 38,423.90 is: 57,635.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,512.60 : 90,768.90 = 38,423.90 : x
  2. Step 2: Convert to fraction form
    60,512.60/90,768.90 = 38,423.90/x
  3. Step 3: Cross multiply
    60,512.60x = 90,768.90 × 38,423.90
  4. Step 4: Simplify right side
    60,512.60x = 3,487,695,136.71
  5. Step 5: Solve for x
    x = 3,487,695,136.71/60,512.60
  6. Step 6: Final answer
    x = 57,635.85

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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.