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Finding the Fourth Proportional to 44,845.40, 67,243.80 and 18,520.40

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Solution

The fourth proportional to 44,845.40, 67,243.80 and 18,520.40 is: 27,770.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,845.40 : 67,243.80 = 18,520.40 : x
  2. Step 2: Convert to fraction form
    44,845.40/67,243.80 = 18,520.40/x
  3. Step 3: Cross multiply
    44,845.40x = 67,243.80 × 18,520.40
  4. Step 4: Simplify right side
    44,845.40x = 1,245,382,073.52
  5. Step 5: Solve for x
    x = 1,245,382,073.52/44,845.40
  6. Step 6: Final answer
    x = 27,770.56

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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.