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Finding the Fourth Proportional to 12,245.94, 18,369.11 and 5,320.44

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Solution

The fourth proportional to 12,245.94, 18,369.11 and 5,320.44 is: 7,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.94 : 18,369.11 = 5,320.44 : x
  2. Step 2: Convert to fraction form
    12,245.94/18,369.11 = 5,320.44/x
  3. Step 3: Cross multiply
    12,245.94x = 18,369.11 × 5,320.44
  4. Step 4: Simplify right side
    12,245.94x = 97,731,747.61
  5. Step 5: Solve for x
    x = 97,731,747.61/12,245.94
  6. Step 6: Final answer
    x = 7,980.75

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