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Finding the Third Proportional to 2,228 and 2,976

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Solution

The third proportional to 2,228 and 2,976 is: 3,975.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228 : 2,976 = 2,976 : x
  2. Step 2: Convert to fraction form
    2,228/2,976 = 2,976/x
  3. Step 3: Cross multiply
    2,228x = 2,976 × 2,976
  4. Step 4: Simplify right side
    2,228x = 8,856,576
  5. Step 5: Solve for x
    x = 8,856,576/2,228
  6. Step 6: Final answer
    x = 3,975.12

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.