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Finding the Third Proportional to 5,476 and 7,982

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Solution

The third proportional to 5,476 and 7,982 is: 11,634.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476 : 7,982 = 7,982 : x
  2. Step 2: Convert to fraction form
    5,476/7,982 = 7,982/x
  3. Step 3: Cross multiply
    5,476x = 7,982 × 7,982
  4. Step 4: Simplify right side
    5,476x = 63,712,324
  5. Step 5: Solve for x
    x = 63,712,324/5,476
  6. Step 6: Final answer
    x = 11,634.83

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.