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Finding the Fourth Proportional to 26,912.39, 40,368.78 and 10,267.94

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Solution

The fourth proportional to 26,912.39, 40,368.78 and 10,267.94 is: 15,401.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,912.39 : 40,368.78 = 10,267.94 : x
  2. Step 2: Convert to fraction form
    26,912.39/40,368.78 = 10,267.94/x
  3. Step 3: Cross multiply
    26,912.39x = 40,368.78 × 10,267.94
  4. Step 4: Simplify right side
    26,912.39x = 414,504,311.84
  5. Step 5: Solve for x
    x = 414,504,311.84/26,912.39
  6. Step 6: Final answer
    x = 15,401.99

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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.