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Finding the Fourth Proportional to 3,771.92, 5,658.48 and 3,511.04

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Solution

The fourth proportional to 3,771.92, 5,658.48 and 3,511.04 is: 5,267.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.92 : 5,658.48 = 3,511.04 : x
  2. Step 2: Convert to fraction form
    3,771.92/5,658.48 = 3,511.04/x
  3. Step 3: Cross multiply
    3,771.92x = 5,658.48 × 3,511.04
  4. Step 4: Simplify right side
    3,771.92x = 19,867,149.62
  5. Step 5: Solve for x
    x = 19,867,149.62/3,771.92
  6. Step 6: Final answer
    x = 5,267.12

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1.5x scale

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.