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Finding the Third Proportional to 4,228 and 6,936

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Solution

The third proportional to 4,228 and 6,936 is: 11,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,228 : 6,936 = 6,936 : x
  2. Step 2: Convert to fraction form
    4,228/6,936 = 6,936/x
  3. Step 3: Cross multiply
    4,228x = 6,936 × 6,936
  4. Step 4: Simplify right side
    4,228x = 48,108,096
  5. Step 5: Solve for x
    x = 48,108,096/4,228
  6. Step 6: Final answer
    x = 11,378.45

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.