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Finding the Fourth Proportional to 7,793.90, 11,692.40 and 2,863.59

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Solution

The fourth proportional to 7,793.90, 11,692.40 and 2,863.59 is: 4,295.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.90 : 11,692.40 = 2,863.59 : x
  2. Step 2: Convert to fraction form
    7,793.90/11,692.40 = 2,863.59/x
  3. Step 3: Cross multiply
    7,793.90x = 11,692.40 × 2,863.59
  4. Step 4: Simplify right side
    7,793.90x = 33,482,239.72
  5. Step 5: Solve for x
    x = 33,482,239.72/7,793.90
  6. Step 6: Final answer
    x = 4,295.95

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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.