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Finding the Third Proportional to 3,766 and 4,102

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Solution

The third proportional to 3,766 and 4,102 is: 4,467.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,766 : 4,102 = 4,102 : x
  2. Step 2: Convert to fraction form
    3,766/4,102 = 4,102/x
  3. Step 3: Cross multiply
    3,766x = 4,102 × 4,102
  4. Step 4: Simplify right side
    3,766x = 16,826,404
  5. Step 5: Solve for x
    x = 16,826,404/3,766
  6. Step 6: Final answer
    x = 4,467.98

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.