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Finding the Fourth Proportional to 33,115.03, 49,672.65 and 8,155.67

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Solution

The fourth proportional to 33,115.03, 49,672.65 and 8,155.67 is: 12,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,115.03 : 49,672.65 = 8,155.67 : x
  2. Step 2: Convert to fraction form
    33,115.03/49,672.65 = 8,155.67/x
  3. Step 3: Cross multiply
    33,115.03x = 49,672.65 × 8,155.67
  4. Step 4: Simplify right side
    33,115.03x = 405,113,523.65
  5. Step 5: Solve for x
    x = 405,113,523.65/33,115.03
  6. Step 6: Final answer
    x = 12,233.53

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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.