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Finding the Fourth Proportional to 3,995.70, 5,995.60 and 3,027.76

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Solution

The fourth proportional to 3,995.70, 5,995.60 and 3,027.76 is: 4,543.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.70 : 5,995.60 = 3,027.76 : x
  2. Step 2: Convert to fraction form
    3,995.70/5,995.60 = 3,027.76/x
  3. Step 3: Cross multiply
    3,995.70x = 5,995.60 × 3,027.76
  4. Step 4: Simplify right side
    3,995.70x = 18,153,237.86
  5. Step 5: Solve for x
    x = 18,153,237.86/3,995.70
  6. Step 6: Final answer
    x = 4,543.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.