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Finding the Third Proportional to 3,876.75 and 8,514

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Solution

The third proportional to 3,876.75 and 8,514 is: 18,698.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.75 : 8,514 = 8,514 : x
  2. Step 2: Convert to fraction form
    3,876.75/8,514 = 8,514/x
  3. Step 3: Cross multiply
    3,876.75x = 8,514 × 8,514
  4. Step 4: Simplify right side
    3,876.75x = 72,488,196
  5. Step 5: Solve for x
    x = 72,488,196/3,876.75
  6. Step 6: Final answer
    x = 18,698.19

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.