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Finding the Third Proportional to 11,918 and 25,471

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Solution

The third proportional to 11,918 and 25,471 is: 54,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918 : 25,471 = 25,471 : x
  2. Step 2: Convert to fraction form
    11,918/25,471 = 25,471/x
  3. Step 3: Cross multiply
    11,918x = 25,471 × 25,471
  4. Step 4: Simplify right side
    11,918x = 648,771,841
  5. Step 5: Solve for x
    x = 648,771,841/11,918
  6. Step 6: Final answer
    x = 54,436.30

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.