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Finding the Fourth Proportional to 63,600.80, 87,874.08 and 47,737.76

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Solution

The fourth proportional to 63,600.80, 87,874.08 and 47,737.76 is: 65,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,600.80 : 87,874.08 = 47,737.76 : x
  2. Step 2: Convert to fraction form
    63,600.80/87,874.08 = 47,737.76/x
  3. Step 3: Cross multiply
    63,600.80x = 87,874.08 × 47,737.76
  4. Step 4: Simplify right side
    63,600.80x = 4,194,911,741.26
  5. Step 5: Solve for x
    x = 4,194,911,741.26/63,600.80
  6. Step 6: Final answer
    x = 65,956.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.