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Finding the Third Proportional to 3,556 and 3,853

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Solution

The third proportional to 3,556 and 3,853 is: 4,174.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556 : 3,853 = 3,853 : x
  2. Step 2: Convert to fraction form
    3,556/3,853 = 3,853/x
  3. Step 3: Cross multiply
    3,556x = 3,853 × 3,853
  4. Step 4: Simplify right side
    3,556x = 14,845,609
  5. Step 5: Solve for x
    x = 14,845,609/3,556
  6. Step 6: Final answer
    x = 4,174.81

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.