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Finding the Fourth Proportional to 33,943.70, 50,879.10 and 12,875.60

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Solution

The fourth proportional to 33,943.70, 50,879.10 and 12,875.60 is: 19,299.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,943.70 : 50,879.10 = 12,875.60 : x
  2. Step 2: Convert to fraction form
    33,943.70/50,879.10 = 12,875.60/x
  3. Step 3: Cross multiply
    33,943.70x = 50,879.10 × 12,875.60
  4. Step 4: Simplify right side
    33,943.70x = 655,098,939.96
  5. Step 5: Solve for x
    x = 655,098,939.96/33,943.70
  6. Step 6: Final answer
    x = 19,299.57

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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.