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Finding the Fourth Proportional to 36,613.69, 54,920.57 and 8,911.69

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Solution

The fourth proportional to 36,613.69, 54,920.57 and 8,911.69 is: 13,367.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,613.69 : 54,920.57 = 8,911.69 : x
  2. Step 2: Convert to fraction form
    36,613.69/54,920.57 = 8,911.69/x
  3. Step 3: Cross multiply
    36,613.69x = 54,920.57 × 8,911.69
  4. Step 4: Simplify right side
    36,613.69x = 489,434,912.60
  5. Step 5: Solve for x
    x = 489,434,912.60/36,613.69
  6. Step 6: Final answer
    x = 13,367.54

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Similar ratio
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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.