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Finding the Fourth Proportional to 5,676.99, 7,834.89 and 3,438.83

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Solution

The fourth proportional to 5,676.99, 7,834.89 and 3,438.83 is: 4,745.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.99 : 7,834.89 = 3,438.83 : x
  2. Step 2: Convert to fraction form
    5,676.99/7,834.89 = 3,438.83/x
  3. Step 3: Cross multiply
    5,676.99x = 7,834.89 × 3,438.83
  4. Step 4: Simplify right side
    5,676.99x = 26,942,815.60
  5. Step 5: Solve for x
    x = 26,942,815.60/5,676.99
  6. Step 6: Final answer
    x = 4,745.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.