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Finding the Fourth Proportional to 11,203.60, 16,804.72 and 4,961.78

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Solution

The fourth proportional to 11,203.60, 16,804.72 and 4,961.78 is: 7,442.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203.60 : 16,804.72 = 4,961.78 : x
  2. Step 2: Convert to fraction form
    11,203.60/16,804.72 = 4,961.78/x
  3. Step 3: Cross multiply
    11,203.60x = 16,804.72 × 4,961.78
  4. Step 4: Simplify right side
    11,203.60x = 83,381,323.60
  5. Step 5: Solve for x
    x = 83,381,323.60/11,203.60
  6. Step 6: Final answer
    x = 7,442.37

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