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Finding the Third Proportional to 7,847 and 11,530

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Solution

The third proportional to 7,847 and 11,530 is: 16,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847 : 11,530 = 11,530 : x
  2. Step 2: Convert to fraction form
    7,847/11,530 = 11,530/x
  3. Step 3: Cross multiply
    7,847x = 11,530 × 11,530
  4. Step 4: Simplify right side
    7,847x = 132,940,900
  5. Step 5: Solve for x
    x = 132,940,900/7,847
  6. Step 6: Final answer
    x = 16,941.62

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.