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Finding the Fourth Proportional to 33,113.70, 49,701.75 and 12,074.07

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Solution

The fourth proportional to 33,113.70, 49,701.75 and 12,074.07 is: 18,122.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,113.70 : 49,701.75 = 12,074.07 : x
  2. Step 2: Convert to fraction form
    33,113.70/49,701.75 = 12,074.07/x
  3. Step 3: Cross multiply
    33,113.70x = 49,701.75 × 12,074.07
  4. Step 4: Simplify right side
    33,113.70x = 600,102,408.62
  5. Step 5: Solve for x
    x = 600,102,408.62/33,113.70
  6. Step 6: Final answer
    x = 18,122.48

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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.