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Finding the Third Proportional to 6,980 and 8,847

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Solution

The third proportional to 6,980 and 8,847 is: 11,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980 : 8,847 = 8,847 : x
  2. Step 2: Convert to fraction form
    6,980/8,847 = 8,847/x
  3. Step 3: Cross multiply
    6,980x = 8,847 × 8,847
  4. Step 4: Simplify right side
    6,980x = 78,269,409
  5. Step 5: Solve for x
    x = 78,269,409/6,980
  6. Step 6: Final answer
    x = 11,213.38

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.