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Finding the Third Proportional to 18,146.25 and 27,219.38

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Solution

The third proportional to 18,146.25 and 27,219.38 is: 40,829.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.25 : 27,219.38 = 27,219.38 : x
  2. Step 2: Convert to fraction form
    18,146.25/27,219.38 = 27,219.38/x
  3. Step 3: Cross multiply
    18,146.25x = 27,219.38 × 27,219.38
  4. Step 4: Simplify right side
    18,146.25x = 740,894,375.39
  5. Step 5: Solve for x
    x = 740,894,375.39/18,146.25
  6. Step 6: Final answer
    x = 40,829.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.