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Finding the Fourth Proportional to 8,650.62, 12,980.97 and 5,692.73

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Solution

The fourth proportional to 8,650.62, 12,980.97 and 5,692.73 is: 8,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.62 : 12,980.97 = 5,692.73 : x
  2. Step 2: Convert to fraction form
    8,650.62/12,980.97 = 5,692.73/x
  3. Step 3: Cross multiply
    8,650.62x = 12,980.97 × 5,692.73
  4. Step 4: Simplify right side
    8,650.62x = 73,897,092.44
  5. Step 5: Solve for x
    x = 73,897,092.44/8,650.62
  6. Step 6: Final answer
    x = 8,542.40

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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.