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Finding the Fourth Proportional to 11,105.58, 16,658.11 and 3,609.13

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Solution

The fourth proportional to 11,105.58, 16,658.11 and 3,609.13 is: 5,413.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.58 : 16,658.11 = 3,609.13 : x
  2. Step 2: Convert to fraction form
    11,105.58/16,658.11 = 3,609.13/x
  3. Step 3: Cross multiply
    11,105.58x = 16,658.11 × 3,609.13
  4. Step 4: Simplify right side
    11,105.58x = 60,121,305.19
  5. Step 5: Solve for x
    x = 60,121,305.19/11,105.58
  6. Step 6: Final answer
    x = 5,413.61

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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.