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Finding the Third Proportional to 3,924 and 8,362

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Solution

The third proportional to 3,924 and 8,362 is: 17,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924 : 8,362 = 8,362 : x
  2. Step 2: Convert to fraction form
    3,924/8,362 = 8,362/x
  3. Step 3: Cross multiply
    3,924x = 8,362 × 8,362
  4. Step 4: Simplify right side
    3,924x = 69,923,044
  5. Step 5: Solve for x
    x = 69,923,044/3,924
  6. Step 6: Final answer
    x = 17,819.33

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.