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Finding the Third Proportional to 2,782 and 4,166

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Solution

The third proportional to 2,782 and 4,166 is: 6,238.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782 : 4,166 = 4,166 : x
  2. Step 2: Convert to fraction form
    2,782/4,166 = 4,166/x
  3. Step 3: Cross multiply
    2,782x = 4,166 × 4,166
  4. Step 4: Simplify right side
    2,782x = 17,355,556
  5. Step 5: Solve for x
    x = 17,355,556/2,782
  6. Step 6: Final answer
    x = 6,238.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.