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Finding the Third Proportional to 4,011 and 5,712.75

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Solution

The third proportional to 4,011 and 5,712.75 is: 8,136.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,011 : 5,712.75 = 5,712.75 : x
  2. Step 2: Convert to fraction form
    4,011/5,712.75 = 5,712.75/x
  3. Step 3: Cross multiply
    4,011x = 5,712.75 × 5,712.75
  4. Step 4: Simplify right side
    4,011x = 32,635,512.56
  5. Step 5: Solve for x
    x = 32,635,512.56/4,011
  6. Step 6: Final answer
    x = 8,136.50

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.