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Finding the Third Proportional to 3,666 and 5,742.75

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Solution

The third proportional to 3,666 and 5,742.75 is: 8,995.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666 : 5,742.75 = 5,742.75 : x
  2. Step 2: Convert to fraction form
    3,666/5,742.75 = 5,742.75/x
  3. Step 3: Cross multiply
    3,666x = 5,742.75 × 5,742.75
  4. Step 4: Simplify right side
    3,666x = 32,979,177.56
  5. Step 5: Solve for x
    x = 32,979,177.56/3,666
  6. Step 6: Final answer
    x = 8,995.96

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.