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Finding the Fourth Proportional to 3,541.92, 5,311.11 and 1,076.16

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Solution

The fourth proportional to 3,541.92, 5,311.11 and 1,076.16 is: 1,613.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,541.92 : 5,311.11 = 1,076.16 : x
  2. Step 2: Convert to fraction form
    3,541.92/5,311.11 = 1,076.16/x
  3. Step 3: Cross multiply
    3,541.92x = 5,311.11 × 1,076.16
  4. Step 4: Simplify right side
    3,541.92x = 5,715,604.14
  5. Step 5: Solve for x
    x = 5,715,604.14/3,541.92
  6. Step 6: Final answer
    x = 1,613.70

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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.