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Finding the Third Proportional to 1,691 and 2,394

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Solution

The third proportional to 1,691 and 2,394 is: 3,389.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,691 : 2,394 = 2,394 : x
  2. Step 2: Convert to fraction form
    1,691/2,394 = 2,394/x
  3. Step 3: Cross multiply
    1,691x = 2,394 × 2,394
  4. Step 4: Simplify right side
    1,691x = 5,731,236
  5. Step 5: Solve for x
    x = 5,731,236/1,691
  6. Step 6: Final answer
    x = 3,389.26

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.