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Finding the Fourth Proportional to 12,385.92, 18,567.51 and 5,361.54

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Solution

The fourth proportional to 12,385.92, 18,567.51 and 5,361.54 is: 8,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.92 : 18,567.51 = 5,361.54 : x
  2. Step 2: Convert to fraction form
    12,385.92/18,567.51 = 5,361.54/x
  3. Step 3: Cross multiply
    12,385.92x = 18,567.51 × 5,361.54
  4. Step 4: Simplify right side
    12,385.92x = 99,550,447.57
  5. Step 5: Solve for x
    x = 99,550,447.57/12,385.92
  6. Step 6: Final answer
    x = 8,037.39

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