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Finding the Third Proportional to 2,422 and 5,161

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Solution

The third proportional to 2,422 and 5,161 is: 10,997.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422 : 5,161 = 5,161 : x
  2. Step 2: Convert to fraction form
    2,422/5,161 = 5,161/x
  3. Step 3: Cross multiply
    2,422x = 5,161 × 5,161
  4. Step 4: Simplify right side
    2,422x = 26,635,921
  5. Step 5: Solve for x
    x = 26,635,921/2,422
  6. Step 6: Final answer
    x = 10,997.49

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.