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Finding the Third Proportional to 3,856 and 4,261

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Solution

The third proportional to 3,856 and 4,261 is: 4,708.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856 : 4,261 = 4,261 : x
  2. Step 2: Convert to fraction form
    3,856/4,261 = 4,261/x
  3. Step 3: Cross multiply
    3,856x = 4,261 × 4,261
  4. Step 4: Simplify right side
    3,856x = 18,156,121
  5. Step 5: Solve for x
    x = 18,156,121/3,856
  6. Step 6: Final answer
    x = 4,708.54

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.