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Finding the Fourth Proportional to 18,313.67, 25,269.86 and 12,033.83

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Solution

The fourth proportional to 18,313.67, 25,269.86 and 12,033.83 is: 16,604.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.67 : 25,269.86 = 12,033.83 : x
  2. Step 2: Convert to fraction form
    18,313.67/25,269.86 = 12,033.83/x
  3. Step 3: Cross multiply
    18,313.67x = 25,269.86 × 12,033.83
  4. Step 4: Simplify right side
    18,313.67x = 304,093,012.85
  5. Step 5: Solve for x
    x = 304,093,012.85/18,313.67
  6. Step 6: Final answer
    x = 16,604.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.