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Finding the Third Proportional to 925 and 2,180

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Solution

The third proportional to 925 and 2,180 is: 5,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    925 : 2,180 = 2,180 : x
  2. Step 2: Convert to fraction form
    925/2,180 = 2,180/x
  3. Step 3: Cross multiply
    925x = 2,180 × 2,180
  4. Step 4: Simplify right side
    925x = 4,752,400
  5. Step 5: Solve for x
    x = 4,752,400/925
  6. Step 6: Final answer
    x = 5,137.73

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.