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Finding the Fourth Proportional to 52,379.58, 72,280.67 and 29,407.71

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Solution

The fourth proportional to 52,379.58, 72,280.67 and 29,407.71 is: 40,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,379.58 : 72,280.67 = 29,407.71 : x
  2. Step 2: Convert to fraction form
    52,379.58/72,280.67 = 29,407.71/x
  3. Step 3: Cross multiply
    52,379.58x = 72,280.67 × 29,407.71
  4. Step 4: Simplify right side
    52,379.58x = 2,125,608,981.97
  5. Step 5: Solve for x
    x = 2,125,608,981.97/52,379.58
  6. Step 6: Final answer
    x = 40,580.87

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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.