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Finding the Third Proportional to 4,179 and 6,711

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Solution

The third proportional to 4,179 and 6,711 is: 10,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,179 : 6,711 = 6,711 : x
  2. Step 2: Convert to fraction form
    4,179/6,711 = 6,711/x
  3. Step 3: Cross multiply
    4,179x = 6,711 × 6,711
  4. Step 4: Simplify right side
    4,179x = 45,037,521
  5. Step 5: Solve for x
    x = 45,037,521/4,179
  6. Step 6: Final answer
    x = 10,777.10

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.