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Finding the Fourth Proportional to 48,661.40, 72,986.70 and 13,604.60

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Solution

The fourth proportional to 48,661.40, 72,986.70 and 13,604.60 is: 20,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,661.40 : 72,986.70 = 13,604.60 : x
  2. Step 2: Convert to fraction form
    48,661.40/72,986.70 = 13,604.60/x
  3. Step 3: Cross multiply
    48,661.40x = 72,986.70 × 13,604.60
  4. Step 4: Simplify right side
    48,661.40x = 992,954,858.82
  5. Step 5: Solve for x
    x = 992,954,858.82/48,661.40
  6. Step 6: Final answer
    x = 20,405.39

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