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Finding the Third Proportional to 3,966 and 8,670

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Solution

The third proportional to 3,966 and 8,670 is: 18,953.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966 : 8,670 = 8,670 : x
  2. Step 2: Convert to fraction form
    3,966/8,670 = 8,670/x
  3. Step 3: Cross multiply
    3,966x = 8,670 × 8,670
  4. Step 4: Simplify right side
    3,966x = 75,168,900
  5. Step 5: Solve for x
    x = 75,168,900/3,966
  6. Step 6: Final answer
    x = 18,953.33

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.