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Finding the Fourth Proportional to 63,811.20, 95,737.20 and 19,446.40

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Solution

The fourth proportional to 63,811.20, 95,737.20 and 19,446.40 is: 29,175.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,811.20 : 95,737.20 = 19,446.40 : x
  2. Step 2: Convert to fraction form
    63,811.20/95,737.20 = 19,446.40/x
  3. Step 3: Cross multiply
    63,811.20x = 95,737.20 × 19,446.40
  4. Step 4: Simplify right side
    63,811.20x = 1,861,743,886.08
  5. Step 5: Solve for x
    x = 1,861,743,886.08/63,811.20
  6. Step 6: Final answer
    x = 29,175.82

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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.