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Finding the Fourth Proportional to 60,217.82, 90,331.90 and 15,844.82

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Solution

The fourth proportional to 60,217.82, 90,331.90 and 15,844.82 is: 23,768.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,217.82 : 90,331.90 = 15,844.82 : x
  2. Step 2: Convert to fraction form
    60,217.82/90,331.90 = 15,844.82/x
  3. Step 3: Cross multiply
    60,217.82x = 90,331.90 × 15,844.82
  4. Step 4: Simplify right side
    60,217.82x = 1,431,292,695.76
  5. Step 5: Solve for x
    x = 1,431,292,695.76/60,217.82
  6. Step 6: Final answer
    x = 23,768.59

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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.