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Finding the Fourth Proportional to 40,511.69, 60,788.87 and 20,790.25

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Solution

The fourth proportional to 40,511.69, 60,788.87 and 20,790.25 is: 31,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,511.69 : 60,788.87 = 20,790.25 : x
  2. Step 2: Convert to fraction form
    40,511.69/60,788.87 = 20,790.25/x
  3. Step 3: Cross multiply
    40,511.69x = 60,788.87 × 20,790.25
  4. Step 4: Simplify right side
    40,511.69x = 1,263,815,804.52
  5. Step 5: Solve for x
    x = 1,263,815,804.52/40,511.69
  6. Step 6: Final answer
    x = 31,196.32

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