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Finding the Fourth Proportional to 8,495.45, 12,743.19 and 3,229.23

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Solution

The fourth proportional to 8,495.45, 12,743.19 and 3,229.23 is: 4,843.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495.45 : 12,743.19 = 3,229.23 : x
  2. Step 2: Convert to fraction form
    8,495.45/12,743.19 = 3,229.23/x
  3. Step 3: Cross multiply
    8,495.45x = 12,743.19 × 3,229.23
  4. Step 4: Simplify right side
    8,495.45x = 41,150,619.65
  5. Step 5: Solve for x
    x = 41,150,619.65/8,495.45
  6. Step 6: Final answer
    x = 4,843.84

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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.