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Finding the Third Proportional to 3,018 and 4,247

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Solution

The third proportional to 3,018 and 4,247 is: 5,976.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018 : 4,247 = 4,247 : x
  2. Step 2: Convert to fraction form
    3,018/4,247 = 4,247/x
  3. Step 3: Cross multiply
    3,018x = 4,247 × 4,247
  4. Step 4: Simplify right side
    3,018x = 18,037,009
  5. Step 5: Solve for x
    x = 18,037,009/3,018
  6. Step 6: Final answer
    x = 5,976.48

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.