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Finding the Fourth Proportional to 8,839.80, 13,227.30 and 5,923.80

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Solution

The fourth proportional to 8,839.80, 13,227.30 and 5,923.80 is: 8,863.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.80 : 13,227.30 = 5,923.80 : x
  2. Step 2: Convert to fraction form
    8,839.80/13,227.30 = 5,923.80/x
  3. Step 3: Cross multiply
    8,839.80x = 13,227.30 × 5,923.80
  4. Step 4: Simplify right side
    8,839.80x = 78,355,879.74
  5. Step 5: Solve for x
    x = 78,355,879.74/8,839.80
  6. Step 6: Final answer
    x = 8,863.99

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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.