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Finding the Fourth Proportional to 62,663.28, 86,480.81 and 34,374.44

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Solution

The fourth proportional to 62,663.28, 86,480.81 and 34,374.44 is: 47,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,663.28 : 86,480.81 = 34,374.44 : x
  2. Step 2: Convert to fraction form
    62,663.28/86,480.81 = 34,374.44/x
  3. Step 3: Cross multiply
    62,663.28x = 86,480.81 × 34,374.44
  4. Step 4: Simplify right side
    62,663.28x = 2,972,728,810.22
  5. Step 5: Solve for x
    x = 2,972,728,810.22/62,663.28
  6. Step 6: Final answer
    x = 47,439.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.