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Finding the Fourth Proportional to 3,761.72, 5,190.56 and 2,363.48

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Solution

The fourth proportional to 3,761.72, 5,190.56 and 2,363.48 is: 3,261.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.72 : 5,190.56 = 2,363.48 : x
  2. Step 2: Convert to fraction form
    3,761.72/5,190.56 = 2,363.48/x
  3. Step 3: Cross multiply
    3,761.72x = 5,190.56 × 2,363.48
  4. Step 4: Simplify right side
    3,761.72x = 12,267,784.75
  5. Step 5: Solve for x
    x = 12,267,784.75/3,761.72
  6. Step 6: Final answer
    x = 3,261.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.