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Finding the Third Proportional to 7,934 and 12,326

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Solution

The third proportional to 7,934 and 12,326 is: 19,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934 : 12,326 = 12,326 : x
  2. Step 2: Convert to fraction form
    7,934/12,326 = 12,326/x
  3. Step 3: Cross multiply
    7,934x = 12,326 × 12,326
  4. Step 4: Simplify right side
    7,934x = 151,930,276
  5. Step 5: Solve for x
    x = 151,930,276/7,934
  6. Step 6: Final answer
    x = 19,149.27

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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.