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Finding the Fourth Proportional to 3,753.95, 5,174.48 and 2,956.01

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Solution

The fourth proportional to 3,753.95, 5,174.48 and 2,956.01 is: 4,074.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.95 : 5,174.48 = 2,956.01 : x
  2. Step 2: Convert to fraction form
    3,753.95/5,174.48 = 2,956.01/x
  3. Step 3: Cross multiply
    3,753.95x = 5,174.48 × 2,956.01
  4. Step 4: Simplify right side
    3,753.95x = 15,295,814.62
  5. Step 5: Solve for x
    x = 15,295,814.62/3,753.95
  6. Step 6: Final answer
    x = 4,074.59

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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.