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Finding the Fourth Proportional to 33,771.90, 50,657.89 and 8,811.93

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Solution

The fourth proportional to 33,771.90, 50,657.89 and 8,811.93 is: 13,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,771.90 : 50,657.89 = 8,811.93 : x
  2. Step 2: Convert to fraction form
    33,771.90/50,657.89 = 8,811.93/x
  3. Step 3: Cross multiply
    33,771.90x = 50,657.89 × 8,811.93
  4. Step 4: Simplify right side
    33,771.90x = 446,393,780.63
  5. Step 5: Solve for x
    x = 446,393,780.63/33,771.90
  6. Step 6: Final answer
    x = 13,217.91

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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.