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Finding the Third Proportional to 3,866 and 6,145

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Solution

The third proportional to 3,866 and 6,145 is: 9,767.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866 : 6,145 = 6,145 : x
  2. Step 2: Convert to fraction form
    3,866/6,145 = 6,145/x
  3. Step 3: Cross multiply
    3,866x = 6,145 × 6,145
  4. Step 4: Simplify right side
    3,866x = 37,761,025
  5. Step 5: Solve for x
    x = 37,761,025/3,866
  6. Step 6: Final answer
    x = 9,767.47

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.