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Finding the Third Proportional to 12,174 and 25,917

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Solution

The third proportional to 12,174 and 25,917 is: 55,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174 : 25,917 = 25,917 : x
  2. Step 2: Convert to fraction form
    12,174/25,917 = 25,917/x
  3. Step 3: Cross multiply
    12,174x = 25,917 × 25,917
  4. Step 4: Simplify right side
    12,174x = 671,690,889
  5. Step 5: Solve for x
    x = 671,690,889/12,174
  6. Step 6: Final answer
    x = 55,174.21

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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.