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Finding the Fourth Proportional to 59,766.88, 89,663.28 and 18,217.12

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Solution

The fourth proportional to 59,766.88, 89,663.28 and 18,217.12 is: 27,329.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,766.88 : 89,663.28 = 18,217.12 : x
  2. Step 2: Convert to fraction form
    59,766.88/89,663.28 = 18,217.12/x
  3. Step 3: Cross multiply
    59,766.88x = 89,663.28 × 18,217.12
  4. Step 4: Simplify right side
    59,766.88x = 1,633,406,731.35
  5. Step 5: Solve for x
    x = 1,633,406,731.35/59,766.88
  6. Step 6: Final answer
    x = 27,329.63

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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.