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Finding the Fourth Proportional to 86,661.36, 129,996.90 and 24,327

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Solution

The fourth proportional to 86,661.36, 129,996.90 and 24,327 is: 36,491.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,661.36 : 129,996.90 = 24,327 : x
  2. Step 2: Convert to fraction form
    86,661.36/129,996.90 = 24,327/x
  3. Step 3: Cross multiply
    86,661.36x = 129,996.90 × 24,327
  4. Step 4: Simplify right side
    86,661.36x = 3,162,434,586.30
  5. Step 5: Solve for x
    x = 3,162,434,586.30/86,661.36
  6. Step 6: Final answer
    x = 36,491.86

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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.