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Finding the Third Proportional to 8,330 and 12,174

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Solution

The third proportional to 8,330 and 12,174 is: 17,791.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330 : 12,174 = 12,174 : x
  2. Step 2: Convert to fraction form
    8,330/12,174 = 12,174/x
  3. Step 3: Cross multiply
    8,330x = 12,174 × 12,174
  4. Step 4: Simplify right side
    8,330x = 148,206,276
  5. Step 5: Solve for x
    x = 148,206,276/8,330
  6. Step 6: Final answer
    x = 17,791.87

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.