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Finding the Third Proportional to 1,718 and 4,149

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Solution

The third proportional to 1,718 and 4,149 is: 10,019.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718 : 4,149 = 4,149 : x
  2. Step 2: Convert to fraction form
    1,718/4,149 = 4,149/x
  3. Step 3: Cross multiply
    1,718x = 4,149 × 4,149
  4. Step 4: Simplify right side
    1,718x = 17,214,201
  5. Step 5: Solve for x
    x = 17,214,201/1,718
  6. Step 6: Final answer
    x = 10,019.91

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.