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Finding the Fourth Proportional to 43,772.40, 65,561.40 and 33,879.60

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Solution

The fourth proportional to 43,772.40, 65,561.40 and 33,879.60 is: 50,744.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,772.40 : 65,561.40 = 33,879.60 : x
  2. Step 2: Convert to fraction form
    43,772.40/65,561.40 = 33,879.60/x
  3. Step 3: Cross multiply
    43,772.40x = 65,561.40 × 33,879.60
  4. Step 4: Simplify right side
    43,772.40x = 2,221,194,007.44
  5. Step 5: Solve for x
    x = 2,221,194,007.44/43,772.40
  6. Step 6: Final answer
    x = 50,744.17

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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.