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Finding the Fourth Proportional to 13,712.02, 18,922.56 and 7,424.41

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Solution

The fourth proportional to 13,712.02, 18,922.56 and 7,424.41 is: 10,245.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.02 : 18,922.56 = 7,424.41 : x
  2. Step 2: Convert to fraction form
    13,712.02/18,922.56 = 7,424.41/x
  3. Step 3: Cross multiply
    13,712.02x = 18,922.56 × 7,424.41
  4. Step 4: Simplify right side
    13,712.02x = 140,488,843.69
  5. Step 5: Solve for x
    x = 140,488,843.69/13,712.02
  6. Step 6: Final answer
    x = 10,245.67

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