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Finding the Fourth Proportional to 7,245.75, 9,999.26 and 3,933.75

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Solution

The fourth proportional to 7,245.75, 9,999.26 and 3,933.75 is: 5,428.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.75 : 9,999.26 = 3,933.75 : x
  2. Step 2: Convert to fraction form
    7,245.75/9,999.26 = 3,933.75/x
  3. Step 3: Cross multiply
    7,245.75x = 9,999.26 × 3,933.75
  4. Step 4: Simplify right side
    7,245.75x = 39,334,589.03
  5. Step 5: Solve for x
    x = 39,334,589.03/7,245.75
  6. Step 6: Final answer
    x = 5,428.64

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