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Finding the Third Proportional to 19,388 and 41,874

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Solution

The third proportional to 19,388 and 41,874 is: 90,439.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388 : 41,874 = 41,874 : x
  2. Step 2: Convert to fraction form
    19,388/41,874 = 41,874/x
  3. Step 3: Cross multiply
    19,388x = 41,874 × 41,874
  4. Step 4: Simplify right side
    19,388x = 1,753,431,876
  5. Step 5: Solve for x
    x = 1,753,431,876/19,388
  6. Step 6: Final answer
    x = 90,439.03

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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.