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Finding the Fourth Proportional to 63,243.92, 94,929.90 and 31,676.60

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Solution

The fourth proportional to 63,243.92, 94,929.90 and 31,676.60 is: 47,546.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,243.92 : 94,929.90 = 31,676.60 : x
  2. Step 2: Convert to fraction form
    63,243.92/94,929.90 = 31,676.60/x
  3. Step 3: Cross multiply
    63,243.92x = 94,929.90 × 31,676.60
  4. Step 4: Simplify right side
    63,243.92x = 3,007,056,470.34
  5. Step 5: Solve for x
    x = 3,007,056,470.34/63,243.92
  6. Step 6: Final answer
    x = 47,546.97

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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.