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Finding the Third Proportional to 3,476 and 7,681

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Solution

The third proportional to 3,476 and 7,681 is: 16,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476 : 7,681 = 7,681 : x
  2. Step 2: Convert to fraction form
    3,476/7,681 = 7,681/x
  3. Step 3: Cross multiply
    3,476x = 7,681 × 7,681
  4. Step 4: Simplify right side
    3,476x = 58,997,761
  5. Step 5: Solve for x
    x = 58,997,761/3,476
  6. Step 6: Final answer
    x = 16,972.89

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.