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Finding the Third Proportional to 3,412 and 7,491

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Solution

The third proportional to 3,412 and 7,491 is: 16,446.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412 : 7,491 = 7,491 : x
  2. Step 2: Convert to fraction form
    3,412/7,491 = 7,491/x
  3. Step 3: Cross multiply
    3,412x = 7,491 × 7,491
  4. Step 4: Simplify right side
    3,412x = 56,115,081
  5. Step 5: Solve for x
    x = 56,115,081/3,412
  6. Step 6: Final answer
    x = 16,446.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.