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Finding the Third Proportional to 3,949 and 6,142

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Solution

The third proportional to 3,949 and 6,142 is: 9,552.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949 : 6,142 = 6,142 : x
  2. Step 2: Convert to fraction form
    3,949/6,142 = 6,142/x
  3. Step 3: Cross multiply
    3,949x = 6,142 × 6,142
  4. Step 4: Simplify right side
    3,949x = 37,724,164
  5. Step 5: Solve for x
    x = 37,724,164/3,949
  6. Step 6: Final answer
    x = 9,552.84

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.