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Finding the Third Proportional to 5,227 and 7,894

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Solution

The third proportional to 5,227 and 7,894 is: 11,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227 : 7,894 = 7,894 : x
  2. Step 2: Convert to fraction form
    5,227/7,894 = 7,894/x
  3. Step 3: Cross multiply
    5,227x = 7,894 × 7,894
  4. Step 4: Simplify right side
    5,227x = 62,315,236
  5. Step 5: Solve for x
    x = 62,315,236/5,227
  6. Step 6: Final answer
    x = 11,921.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.