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Finding the Fourth Proportional to 7,474.22, 11,219.83 and 3,780.62

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Solution

The fourth proportional to 7,474.22, 11,219.83 and 3,780.62 is: 5,675.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.22 : 11,219.83 = 3,780.62 : x
  2. Step 2: Convert to fraction form
    7,474.22/11,219.83 = 3,780.62/x
  3. Step 3: Cross multiply
    7,474.22x = 11,219.83 × 3,780.62
  4. Step 4: Simplify right side
    7,474.22x = 42,417,913.69
  5. Step 5: Solve for x
    x = 42,417,913.69/7,474.22
  6. Step 6: Final answer
    x = 5,675.23

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