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Finding the Third Proportional to 2,180 and 3,498

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Solution

The third proportional to 2,180 and 3,498 is: 5,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180 : 3,498 = 3,498 : x
  2. Step 2: Convert to fraction form
    2,180/3,498 = 3,498/x
  3. Step 3: Cross multiply
    2,180x = 3,498 × 3,498
  4. Step 4: Simplify right side
    2,180x = 12,236,004
  5. Step 5: Solve for x
    x = 12,236,004/2,180
  6. Step 6: Final answer
    x = 5,612.85

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.