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Finding the Fourth Proportional to 33,429.70, 50,132.40 and 11,243.80

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Solution

The fourth proportional to 33,429.70, 50,132.40 and 11,243.80 is: 16,861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,429.70 : 50,132.40 = 11,243.80 : x
  2. Step 2: Convert to fraction form
    33,429.70/50,132.40 = 11,243.80/x
  3. Step 3: Cross multiply
    33,429.70x = 50,132.40 × 11,243.80
  4. Step 4: Simplify right side
    33,429.70x = 563,678,679.12
  5. Step 5: Solve for x
    x = 563,678,679.12/33,429.70
  6. Step 6: Final answer
    x = 16,861.61

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.