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Finding the Third Proportional to 3,926 and 6,879

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Solution

The third proportional to 3,926 and 6,879 is: 12,053.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926 : 6,879 = 6,879 : x
  2. Step 2: Convert to fraction form
    3,926/6,879 = 6,879/x
  3. Step 3: Cross multiply
    3,926x = 6,879 × 6,879
  4. Step 4: Simplify right side
    3,926x = 47,320,641
  5. Step 5: Solve for x
    x = 47,320,641/3,926
  6. Step 6: Final answer
    x = 12,053.14

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.