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Finding the Fourth Proportional to 39,711.36, 54,798.48 and 22,945.44

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Solution

The fourth proportional to 39,711.36, 54,798.48 and 22,945.44 is: 31,662.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,711.36 : 54,798.48 = 22,945.44 : x
  2. Step 2: Convert to fraction form
    39,711.36/54,798.48 = 22,945.44/x
  3. Step 3: Cross multiply
    39,711.36x = 54,798.48 × 22,945.44
  4. Step 4: Simplify right side
    39,711.36x = 1,257,375,234.93
  5. Step 5: Solve for x
    x = 1,257,375,234.93/39,711.36
  6. Step 6: Final answer
    x = 31,662.86

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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.