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Finding the Fourth Proportional to 59,676, 89,517.60 and 18,123.36

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Solution

The fourth proportional to 59,676, 89,517.60 and 18,123.36 is: 27,186.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,676 : 89,517.60 = 18,123.36 : x
  2. Step 2: Convert to fraction form
    59,676/89,517.60 = 18,123.36/x
  3. Step 3: Cross multiply
    59,676x = 89,517.60 × 18,123.36
  4. Step 4: Simplify right side
    59,676x = 1,622,359,691.14
  5. Step 5: Solve for x
    x = 1,622,359,691.14/59,676
  6. Step 6: Final answer
    x = 27,186.13

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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.