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Finding the Third Proportional to 6,774 and 11,229

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Solution

The third proportional to 6,774 and 11,229 is: 18,613.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,774 : 11,229 = 11,229 : x
  2. Step 2: Convert to fraction form
    6,774/11,229 = 11,229/x
  3. Step 3: Cross multiply
    6,774x = 11,229 × 11,229
  4. Step 4: Simplify right side
    6,774x = 126,090,441
  5. Step 5: Solve for x
    x = 126,090,441/6,774
  6. Step 6: Final answer
    x = 18,613.88

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.