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Finding the Third Proportional to 3,002 and 4,009

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Solution

The third proportional to 3,002 and 4,009 is: 5,353.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002 : 4,009 = 4,009 : x
  2. Step 2: Convert to fraction form
    3,002/4,009 = 4,009/x
  3. Step 3: Cross multiply
    3,002x = 4,009 × 4,009
  4. Step 4: Simplify right side
    3,002x = 16,072,081
  5. Step 5: Solve for x
    x = 16,072,081/3,002
  6. Step 6: Final answer
    x = 5,353.79

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.