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Finding the Third Proportional to 6,481 and 11,629

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Solution

The third proportional to 6,481 and 11,629 is: 20,866.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,481 : 11,629 = 11,629 : x
  2. Step 2: Convert to fraction form
    6,481/11,629 = 11,629/x
  3. Step 3: Cross multiply
    6,481x = 11,629 × 11,629
  4. Step 4: Simplify right side
    6,481x = 135,233,641
  5. Step 5: Solve for x
    x = 135,233,641/6,481
  6. Step 6: Final answer
    x = 20,866.17

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.