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Finding the Fourth Proportional to 74,469.92, 111,713.09 and 21,883.50

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Solution

The fourth proportional to 74,469.92, 111,713.09 and 21,883.50 is: 32,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,469.92 : 111,713.09 = 21,883.50 : x
  2. Step 2: Convert to fraction form
    74,469.92/111,713.09 = 21,883.50/x
  3. Step 3: Cross multiply
    74,469.92x = 111,713.09 × 21,883.50
  4. Step 4: Simplify right side
    74,469.92x = 2,444,673,295.60
  5. Step 5: Solve for x
    x = 2,444,673,295.60/74,469.92
  6. Step 6: Final answer
    x = 32,827.66

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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.