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Finding the Fourth Proportional to 62,824.69, 86,702.16 and 38,967.22

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Solution

The fourth proportional to 62,824.69, 86,702.16 and 38,967.22 is: 53,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,824.69 : 86,702.16 = 38,967.22 : x
  2. Step 2: Convert to fraction form
    62,824.69/86,702.16 = 38,967.22/x
  3. Step 3: Cross multiply
    62,824.69x = 86,702.16 × 38,967.22
  4. Step 4: Simplify right side
    62,824.69x = 3,378,542,143.20
  5. Step 5: Solve for x
    x = 3,378,542,143.20/62,824.69
  6. Step 6: Final answer
    x = 53,777.30

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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.