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Finding the Fourth Proportional to 41,963.20, 62,945.64 and 15,662.70

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Solution

The fourth proportional to 41,963.20, 62,945.64 and 15,662.70 is: 23,494.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,963.20 : 62,945.64 = 15,662.70 : x
  2. Step 2: Convert to fraction form
    41,963.20/62,945.64 = 15,662.70/x
  3. Step 3: Cross multiply
    41,963.20x = 62,945.64 × 15,662.70
  4. Step 4: Simplify right side
    41,963.20x = 985,898,675.63
  5. Step 5: Solve for x
    x = 985,898,675.63/41,963.20
  6. Step 6: Final answer
    x = 23,494.36

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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.