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Finding the Fourth Proportional to 60,003.20, 89,978.88 and 18,440.48

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Solution

The fourth proportional to 60,003.20, 89,978.88 and 18,440.48 is: 27,652.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,003.20 : 89,978.88 = 18,440.48 : x
  2. Step 2: Convert to fraction form
    60,003.20/89,978.88 = 18,440.48/x
  3. Step 3: Cross multiply
    60,003.20x = 89,978.88 × 18,440.48
  4. Step 4: Simplify right side
    60,003.20x = 1,659,253,737.06
  5. Step 5: Solve for x
    x = 1,659,253,737.06/60,003.20
  6. Step 6: Final answer
    x = 27,652.75

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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.