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Finding the Third Proportional to 3,476 and 8,021

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Solution

The third proportional to 3,476 and 8,021 is: 18,508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476 : 8,021 = 8,021 : x
  2. Step 2: Convert to fraction form
    3,476/8,021 = 8,021/x
  3. Step 3: Cross multiply
    3,476x = 8,021 × 8,021
  4. Step 4: Simplify right side
    3,476x = 64,336,441
  5. Step 5: Solve for x
    x = 64,336,441/3,476
  6. Step 6: Final answer
    x = 18,508.76

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.