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Finding the Fourth Proportional to 54,448.77, 81,684.78 and 18,911.19

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Solution

The fourth proportional to 54,448.77, 81,684.78 and 18,911.19 is: 28,370.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,448.77 : 81,684.78 = 18,911.19 : x
  2. Step 2: Convert to fraction form
    54,448.77/81,684.78 = 18,911.19/x
  3. Step 3: Cross multiply
    54,448.77x = 81,684.78 × 18,911.19
  4. Step 4: Simplify right side
    54,448.77x = 1,544,756,394.69
  5. Step 5: Solve for x
    x = 1,544,756,394.69/54,448.77
  6. Step 6: Final answer
    x = 28,370.82

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