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Finding the Fourth Proportional to 8,311.41, 12,450.24 and 4,791.24

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Solution

The fourth proportional to 8,311.41, 12,450.24 and 4,791.24 is: 7,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.41 : 12,450.24 = 4,791.24 : x
  2. Step 2: Convert to fraction form
    8,311.41/12,450.24 = 4,791.24/x
  3. Step 3: Cross multiply
    8,311.41x = 12,450.24 × 4,791.24
  4. Step 4: Simplify right side
    8,311.41x = 59,652,087.90
  5. Step 5: Solve for x
    x = 59,652,087.90/8,311.41
  6. Step 6: Final answer
    x = 7,177.13

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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.