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Finding the Third Proportional to 1,769 and 3,317

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Solution

The third proportional to 1,769 and 3,317 is: 6,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769 : 3,317 = 3,317 : x
  2. Step 2: Convert to fraction form
    1,769/3,317 = 3,317/x
  3. Step 3: Cross multiply
    1,769x = 3,317 × 3,317
  4. Step 4: Simplify right side
    1,769x = 11,002,489
  5. Step 5: Solve for x
    x = 11,002,489/1,769
  6. Step 6: Final answer
    x = 6,219.61

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.