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Finding the Third Proportional to 7,929 and 11,326

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Solution

The third proportional to 7,929 and 11,326 is: 16,178.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929 : 11,326 = 11,326 : x
  2. Step 2: Convert to fraction form
    7,929/11,326 = 11,326/x
  3. Step 3: Cross multiply
    7,929x = 11,326 × 11,326
  4. Step 4: Simplify right side
    7,929x = 128,278,276
  5. Step 5: Solve for x
    x = 128,278,276/7,929
  6. Step 6: Final answer
    x = 16,178.37

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.