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Finding the Third Proportional to 2,890 and 3,306

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Solution

The third proportional to 2,890 and 3,306 is: 3,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890 : 3,306 = 3,306 : x
  2. Step 2: Convert to fraction form
    2,890/3,306 = 3,306/x
  3. Step 3: Cross multiply
    2,890x = 3,306 × 3,306
  4. Step 4: Simplify right side
    2,890x = 10,929,636
  5. Step 5: Solve for x
    x = 10,929,636/2,890
  6. Step 6: Final answer
    x = 3,781.88

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.