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Finding the Third Proportional to 36,240 and 75,744

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Solution

The third proportional to 36,240 and 75,744 is: 158,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,240 : 75,744 = 75,744 : x
  2. Step 2: Convert to fraction form
    36,240/75,744 = 75,744/x
  3. Step 3: Cross multiply
    36,240x = 75,744 × 75,744
  4. Step 4: Simplify right side
    36,240x = 5,737,153,536
  5. Step 5: Solve for x
    x = 5,737,153,536/36,240
  6. Step 6: Final answer
    x = 158,309.98

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.