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Finding the Third Proportional to 3,916 and 9,169

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Solution

The third proportional to 3,916 and 9,169 is: 21,468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916 : 9,169 = 9,169 : x
  2. Step 2: Convert to fraction form
    3,916/9,169 = 9,169/x
  3. Step 3: Cross multiply
    3,916x = 9,169 × 9,169
  4. Step 4: Simplify right side
    3,916x = 84,070,561
  5. Step 5: Solve for x
    x = 84,070,561/3,916
  6. Step 6: Final answer
    x = 21,468.48

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.