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Finding the Fourth Proportional to 58,491.74, 87,737.61 and 14,118.45

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Solution

The fourth proportional to 58,491.74, 87,737.61 and 14,118.45 is: 21,177.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,491.74 : 87,737.61 = 14,118.45 : x
  2. Step 2: Convert to fraction form
    58,491.74/87,737.61 = 14,118.45/x
  3. Step 3: Cross multiply
    58,491.74x = 87,737.61 × 14,118.45
  4. Step 4: Simplify right side
    58,491.74x = 1,238,719,059.90
  5. Step 5: Solve for x
    x = 1,238,719,059.90/58,491.74
  6. Step 6: Final answer
    x = 21,177.68

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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.