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Finding the Fourth Proportional to 13,078.98, 18,048.86 and 9,736.74

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Solution

The fourth proportional to 13,078.98, 18,048.86 and 9,736.74 is: 13,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.98 : 18,048.86 = 9,736.74 : x
  2. Step 2: Convert to fraction form
    13,078.98/18,048.86 = 9,736.74/x
  3. Step 3: Cross multiply
    13,078.98x = 18,048.86 × 9,736.74
  4. Step 4: Simplify right side
    13,078.98x = 175,737,057.12
  5. Step 5: Solve for x
    x = 175,737,057.12/13,078.98
  6. Step 6: Final answer
    x = 13,436.60

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