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Finding the Third Proportional to 3,813.75 and 5,761.13

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Solution

The third proportional to 3,813.75 and 5,761.13 is: 8,702.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.75 : 5,761.13 = 5,761.13 : x
  2. Step 2: Convert to fraction form
    3,813.75/5,761.13 = 5,761.13/x
  3. Step 3: Cross multiply
    3,813.75x = 5,761.13 × 5,761.13
  4. Step 4: Simplify right side
    3,813.75x = 33,190,561.27
  5. Step 5: Solve for x
    x = 33,190,561.27/3,813.75
  6. Step 6: Final answer
    x = 8,702.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.