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Finding the Fourth Proportional to 59,630.75, 89,380.38 and 38,520.80

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Solution

The fourth proportional to 59,630.75, 89,380.38 and 38,520.80 is: 57,738.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,630.75 : 89,380.38 = 38,520.80 : x
  2. Step 2: Convert to fraction form
    59,630.75/89,380.38 = 38,520.80/x
  3. Step 3: Cross multiply
    59,630.75x = 89,380.38 × 38,520.80
  4. Step 4: Simplify right side
    59,630.75x = 3,443,003,741.90
  5. Step 5: Solve for x
    x = 3,443,003,741.90/59,630.75
  6. Step 6: Final answer
    x = 57,738.73

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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.