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Finding the Fourth Proportional to 58,714.28, 87,970.76 and 39,443.92

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Solution

The fourth proportional to 58,714.28, 87,970.76 and 39,443.92 is: 59,098.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,714.28 : 87,970.76 = 39,443.92 : x
  2. Step 2: Convert to fraction form
    58,714.28/87,970.76 = 39,443.92/x
  3. Step 3: Cross multiply
    58,714.28x = 87,970.76 × 39,443.92
  4. Step 4: Simplify right side
    58,714.28x = 3,469,911,619.78
  5. Step 5: Solve for x
    x = 3,469,911,619.78/58,714.28
  6. Step 6: Final answer
    x = 59,098.26

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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.