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Finding the Fourth Proportional to 5,686,986.92, 8,530,480.41 and 1,900,469.80

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Solution

The fourth proportional to 5,686,986.92, 8,530,480.41 and 1,900,469.80 is: 2,850,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686,986.92 : 8,530,480.41 = 1,900,469.80 : x
  2. Step 2: Convert to fraction form
    5,686,986.92/8,530,480.41 = 1,900,469.80/x
  3. Step 3: Cross multiply
    5,686,986.92x = 8,530,480.41 × 1,900,469.80
  4. Step 4: Simplify right side
    5,686,986.92x = 16,211,920,398,696.62
  5. Step 5: Solve for x
    x = 16,211,920,398,696.62/5,686,986.92
  6. Step 6: Final answer
    x = 2,850,704.71

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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.