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Finding the Fourth Proportional to 8,263.94, 12,396.04 and 8,251.79

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Solution

The fourth proportional to 8,263.94, 12,396.04 and 8,251.79 is: 12,377.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,263.94 : 12,396.04 = 8,251.79 : x
  2. Step 2: Convert to fraction form
    8,263.94/12,396.04 = 8,251.79/x
  3. Step 3: Cross multiply
    8,263.94x = 12,396.04 × 8,251.79
  4. Step 4: Simplify right side
    8,263.94x = 102,289,518.91
  5. Step 5: Solve for x
    x = 102,289,518.91/8,263.94
  6. Step 6: Final answer
    x = 12,377.81

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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.