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Finding the Fourth Proportional to 63,651.60, 87,823.98 and 38,165.76

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Solution

The fourth proportional to 63,651.60, 87,823.98 and 38,165.76 is: 52,659.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,651.60 : 87,823.98 = 38,165.76 : x
  2. Step 2: Convert to fraction form
    63,651.60/87,823.98 = 38,165.76/x
  3. Step 3: Cross multiply
    63,651.60x = 87,823.98 × 38,165.76
  4. Step 4: Simplify right side
    63,651.60x = 3,351,868,942.92
  5. Step 5: Solve for x
    x = 3,351,868,942.92/63,651.60
  6. Step 6: Final answer
    x = 52,659.62

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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.