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Finding the Fourth Proportional to 17,769.98, 26,599.08 and 12,190.70

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Solution

The fourth proportional to 17,769.98, 26,599.08 and 12,190.70 is: 18,247.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,769.98 : 26,599.08 = 12,190.70 : x
  2. Step 2: Convert to fraction form
    17,769.98/26,599.08 = 12,190.70/x
  3. Step 3: Cross multiply
    17,769.98x = 26,599.08 × 12,190.70
  4. Step 4: Simplify right side
    17,769.98x = 324,261,516.77
  5. Step 5: Solve for x
    x = 324,261,516.77/17,769.98
  6. Step 6: Final answer
    x = 18,247.71

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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.