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Finding the Third Proportional to 27,492 and 42,675

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Solution

The third proportional to 27,492 and 42,675 is: 66,243.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,492 : 42,675 = 42,675 : x
  2. Step 2: Convert to fraction form
    27,492/42,675 = 42,675/x
  3. Step 3: Cross multiply
    27,492x = 42,675 × 42,675
  4. Step 4: Simplify right side
    27,492x = 1,821,155,625
  5. Step 5: Solve for x
    x = 1,821,155,625/27,492
  6. Step 6: Final answer
    x = 66,243.11

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.