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Finding the Third Proportional to 27,320 and 38,692

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Solution

The third proportional to 27,320 and 38,692 is: 54,797.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,320 : 38,692 = 38,692 : x
  2. Step 2: Convert to fraction form
    27,320/38,692 = 38,692/x
  3. Step 3: Cross multiply
    27,320x = 38,692 × 38,692
  4. Step 4: Simplify right side
    27,320x = 1,497,070,864
  5. Step 5: Solve for x
    x = 1,497,070,864/27,320
  6. Step 6: Final answer
    x = 54,797.62

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.