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Finding the Fourth Proportional to 38,663.92, 53,353.69 and 22,745.30

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Solution

The fourth proportional to 38,663.92, 53,353.69 and 22,745.30 is: 31,387.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,663.92 : 53,353.69 = 22,745.30 : x
  2. Step 2: Convert to fraction form
    38,663.92/53,353.69 = 22,745.30/x
  3. Step 3: Cross multiply
    38,663.92x = 53,353.69 × 22,745.30
  4. Step 4: Simplify right side
    38,663.92x = 1,213,545,304.66
  5. Step 5: Solve for x
    x = 1,213,545,304.66/38,663.92
  6. Step 6: Final answer
    x = 31,387.02

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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.