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Finding the Fourth Proportional to 59,660, 89,490.54 and 18,107

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Solution

The fourth proportional to 59,660, 89,490.54 and 18,107 is: 27,160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,660 : 89,490.54 = 18,107 : x
  2. Step 2: Convert to fraction form
    59,660/89,490.54 = 18,107/x
  3. Step 3: Cross multiply
    59,660x = 89,490.54 × 18,107
  4. Step 4: Simplify right side
    59,660x = 1,620,405,207.78
  5. Step 5: Solve for x
    x = 1,620,405,207.78/59,660
  6. Step 6: Final answer
    x = 27,160.66

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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.