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Finding the Fourth Proportional to 26,942.27, 40,412.93 and 8,474.27

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Solution

The fourth proportional to 26,942.27, 40,412.93 and 8,474.27 is: 12,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,942.27 : 40,412.93 = 8,474.27 : x
  2. Step 2: Convert to fraction form
    26,942.27/40,412.93 = 8,474.27/x
  3. Step 3: Cross multiply
    26,942.27x = 40,412.93 × 8,474.27
  4. Step 4: Simplify right side
    26,942.27x = 342,469,835.88
  5. Step 5: Solve for x
    x = 342,469,835.88/26,942.27
  6. Step 6: Final answer
    x = 12,711.25

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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.