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Finding the Fourth Proportional to 28,981,696.40, 43,477,793.40 and 14,568,491.60

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Solution

The fourth proportional to 28,981,696.40, 43,477,793.40 and 14,568,491.60 is: 21,855,375.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981,696.40 : 43,477,793.40 = 14,568,491.60 : x
  2. Step 2: Convert to fraction form
    28,981,696.40/43,477,793.40 = 14,568,491.60/x
  3. Step 3: Cross multiply
    28,981,696.40x = 43,477,793.40 × 14,568,491.60
  4. Step 4: Simplify right side
    28,981,696.40x = 633,405,867,934,435.38
  5. Step 5: Solve for x
    x = 633,405,867,934,435.38/28,981,696.40
  6. Step 6: Final answer
    x = 21,855,375.86

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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.