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Finding the Third Proportional to 1,669 and 3,396

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Solution

The third proportional to 1,669 and 3,396 is: 6,910.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669 : 3,396 = 3,396 : x
  2. Step 2: Convert to fraction form
    1,669/3,396 = 3,396/x
  3. Step 3: Cross multiply
    1,669x = 3,396 × 3,396
  4. Step 4: Simplify right side
    1,669x = 11,532,816
  5. Step 5: Solve for x
    x = 11,532,816/1,669
  6. Step 6: Final answer
    x = 6,910.02

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.