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Finding the Third Proportional to 3,949 and 6,925

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Solution

The third proportional to 3,949 and 6,925 is: 12,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949 : 6,925 = 6,925 : x
  2. Step 2: Convert to fraction form
    3,949/6,925 = 6,925/x
  3. Step 3: Cross multiply
    3,949x = 6,925 × 6,925
  4. Step 4: Simplify right side
    3,949x = 47,955,625
  5. Step 5: Solve for x
    x = 47,955,625/3,949
  6. Step 6: Final answer
    x = 12,143.74

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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.