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Finding the Third Proportional to 4,620 and 7,227

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Solution

The third proportional to 4,620 and 7,227 is: 11,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620 : 7,227 = 7,227 : x
  2. Step 2: Convert to fraction form
    4,620/7,227 = 7,227/x
  3. Step 3: Cross multiply
    4,620x = 7,227 × 7,227
  4. Step 4: Simplify right side
    4,620x = 52,229,529
  5. Step 5: Solve for x
    x = 52,229,529/4,620
  6. Step 6: Final answer
    x = 11,305.09

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.