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Finding the Fourth Proportional to 5,585,699.62, 8,379,205.62 and 1,991,977.48

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Solution

The fourth proportional to 5,585,699.62, 8,379,205.62 and 1,991,977.48 is: 2,988,200.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585,699.62 : 8,379,205.62 = 1,991,977.48 : x
  2. Step 2: Convert to fraction form
    5,585,699.62/8,379,205.62 = 1,991,977.48/x
  3. Step 3: Cross multiply
    5,585,699.62x = 8,379,205.62 × 1,991,977.48
  4. Step 4: Simplify right side
    5,585,699.62x = 16,691,188,895,329.44
  5. Step 5: Solve for x
    x = 16,691,188,895,329.44/5,585,699.62
  6. Step 6: Final answer
    x = 2,988,200.23

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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.