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Finding the Third Proportional to 11,828 and 19,374

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Solution

The third proportional to 11,828 and 19,374 is: 31,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828 : 19,374 = 19,374 : x
  2. Step 2: Convert to fraction form
    11,828/19,374 = 19,374/x
  3. Step 3: Cross multiply
    11,828x = 19,374 × 19,374
  4. Step 4: Simplify right side
    11,828x = 375,351,876
  5. Step 5: Solve for x
    x = 375,351,876/11,828
  6. Step 6: Final answer
    x = 31,734.18

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.