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Finding the Fourth Proportional to 59,665.86, 89,489.07 and 18,112.86

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Solution

The fourth proportional to 59,665.86, 89,489.07 and 18,112.86 is: 27,166.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,665.86 : 89,489.07 = 18,112.86 : x
  2. Step 2: Convert to fraction form
    59,665.86/89,489.07 = 18,112.86/x
  3. Step 3: Cross multiply
    59,665.86x = 89,489.07 × 18,112.86
  4. Step 4: Simplify right side
    59,665.86x = 1,620,902,996.44
  5. Step 5: Solve for x
    x = 1,620,902,996.44/59,665.86
  6. Step 6: Final answer
    x = 27,166.34

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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.