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Finding the Third Proportional to 11,721 and 25,293

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Solution

The third proportional to 11,721 and 25,293 is: 54,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721 : 25,293 = 25,293 : x
  2. Step 2: Convert to fraction form
    11,721/25,293 = 25,293/x
  3. Step 3: Cross multiply
    11,721x = 25,293 × 25,293
  4. Step 4: Simplify right side
    11,721x = 639,735,849
  5. Step 5: Solve for x
    x = 639,735,849/11,721
  6. Step 6: Final answer
    x = 54,580.31

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.