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Finding the Third Proportional to 5,408 and 11,641

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Solution

The third proportional to 5,408 and 11,641 is: 25,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408 : 11,641 = 11,641 : x
  2. Step 2: Convert to fraction form
    5,408/11,641 = 11,641/x
  3. Step 3: Cross multiply
    5,408x = 11,641 × 11,641
  4. Step 4: Simplify right side
    5,408x = 135,512,881
  5. Step 5: Solve for x
    x = 135,512,881/5,408
  6. Step 6: Final answer
    x = 25,057.86

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.