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Finding the Third Proportional to 12,717 and 19,371.38

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Solution

The third proportional to 12,717 and 19,371.38 is: 29,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717 : 19,371.38 = 19,371.38 : x
  2. Step 2: Convert to fraction form
    12,717/19,371.38 = 19,371.38/x
  3. Step 3: Cross multiply
    12,717x = 19,371.38 × 19,371.38
  4. Step 4: Simplify right side
    12,717x = 375,250,169.39
  5. Step 5: Solve for x
    x = 375,250,169.39/12,717
  6. Step 6: Final answer
    x = 29,507.76

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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.