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Finding the Third Proportional to 18,338 and 27,074

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Solution

The third proportional to 18,338 and 27,074 is: 39,971.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338 : 27,074 = 27,074 : x
  2. Step 2: Convert to fraction form
    18,338/27,074 = 27,074/x
  3. Step 3: Cross multiply
    18,338x = 27,074 × 27,074
  4. Step 4: Simplify right side
    18,338x = 733,001,476
  5. Step 5: Solve for x
    x = 733,001,476/18,338
  6. Step 6: Final answer
    x = 39,971.72

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.