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Finding the Fourth Proportional to 43,550.40, 65,228.40 and 33,657.60

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Solution

The fourth proportional to 43,550.40, 65,228.40 and 33,657.60 is: 50,411.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,550.40 : 65,228.40 = 33,657.60 : x
  2. Step 2: Convert to fraction form
    43,550.40/65,228.40 = 33,657.60/x
  3. Step 3: Cross multiply
    43,550.40x = 65,228.40 × 33,657.60
  4. Step 4: Simplify right side
    43,550.40x = 2,195,431,395.84
  5. Step 5: Solve for x
    x = 2,195,431,395.84/43,550.40
  6. Step 6: Final answer
    x = 50,411.28

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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.