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Finding the Fourth Proportional to 43,759.20, 65,703.60 and 33,909.60

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Solution

The fourth proportional to 43,759.20, 65,703.60 and 33,909.60 is: 50,914.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,759.20 : 65,703.60 = 33,909.60 : x
  2. Step 2: Convert to fraction form
    43,759.20/65,703.60 = 33,909.60/x
  3. Step 3: Cross multiply
    43,759.20x = 65,703.60 × 33,909.60
  4. Step 4: Simplify right side
    43,759.20x = 2,227,982,794.56
  5. Step 5: Solve for x
    x = 2,227,982,794.56/43,759.20
  6. Step 6: Final answer
    x = 50,914.61

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1.5x scale

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.