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Finding the Third Proportional to 6,476 and 11,380

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Solution

The third proportional to 6,476 and 11,380 is: 19,997.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,476 : 11,380 = 11,380 : x
  2. Step 2: Convert to fraction form
    6,476/11,380 = 11,380/x
  3. Step 3: Cross multiply
    6,476x = 11,380 × 11,380
  4. Step 4: Simplify right side
    6,476x = 129,504,400
  5. Step 5: Solve for x
    x = 129,504,400/6,476
  6. Step 6: Final answer
    x = 19,997.59

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.