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Finding the Third Proportional to 17,812 and 27,138

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Solution

The third proportional to 17,812 and 27,138 is: 41,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,812 : 27,138 = 27,138 : x
  2. Step 2: Convert to fraction form
    17,812/27,138 = 27,138/x
  3. Step 3: Cross multiply
    17,812x = 27,138 × 27,138
  4. Step 4: Simplify right side
    17,812x = 736,471,044
  5. Step 5: Solve for x
    x = 736,471,044/17,812
  6. Step 6: Final answer
    x = 41,346.90

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.