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Finding the Third Proportional to 49,440 and 75,744

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Solution

The third proportional to 49,440 and 75,744 is: 116,042.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,440 : 75,744 = 75,744 : x
  2. Step 2: Convert to fraction form
    49,440/75,744 = 75,744/x
  3. Step 3: Cross multiply
    49,440x = 75,744 × 75,744
  4. Step 4: Simplify right side
    49,440x = 5,737,153,536
  5. Step 5: Solve for x
    x = 5,737,153,536/49,440
  6. Step 6: Final answer
    x = 116,042.75

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.