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Finding the Fourth Proportional to 58,379.92, 87,568.94 and 39,613.28

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Solution

The fourth proportional to 58,379.92, 87,568.94 and 39,613.28 is: 59,419.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,379.92 : 87,568.94 = 39,613.28 : x
  2. Step 2: Convert to fraction form
    58,379.92/87,568.94 = 39,613.28/x
  3. Step 3: Cross multiply
    58,379.92x = 87,568.94 × 39,613.28
  4. Step 4: Simplify right side
    58,379.92x = 3,468,892,939.52
  5. Step 5: Solve for x
    x = 3,468,892,939.52/58,379.92
  6. Step 6: Final answer
    x = 59,419.28

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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.