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Finding the Third Proportional to 3,946 and 8,179

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Solution

The third proportional to 3,946 and 8,179 is: 16,952.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946 : 8,179 = 8,179 : x
  2. Step 2: Convert to fraction form
    3,946/8,179 = 8,179/x
  3. Step 3: Cross multiply
    3,946x = 8,179 × 8,179
  4. Step 4: Simplify right side
    3,946x = 66,896,041
  5. Step 5: Solve for x
    x = 66,896,041/3,946
  6. Step 6: Final answer
    x = 16,952.87

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.