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Finding the Third Proportional to 3,174.75 and 3,813.75

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Solution

The third proportional to 3,174.75 and 3,813.75 is: 4,581.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.75 : 3,813.75 = 3,813.75 : x
  2. Step 2: Convert to fraction form
    3,174.75/3,813.75 = 3,813.75/x
  3. Step 3: Cross multiply
    3,174.75x = 3,813.75 × 3,813.75
  4. Step 4: Simplify right side
    3,174.75x = 14,544,689.06
  5. Step 5: Solve for x
    x = 14,544,689.06/3,174.75
  6. Step 6: Final answer
    x = 4,581.37

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.