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Finding the Fourth Proportional to 13,170.11, 19,753.64 and 3,308.63

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Solution

The fourth proportional to 13,170.11, 19,753.64 and 3,308.63 is: 4,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.11 : 19,753.64 = 3,308.63 : x
  2. Step 2: Convert to fraction form
    13,170.11/19,753.64 = 3,308.63/x
  3. Step 3: Cross multiply
    13,170.11x = 19,753.64 × 3,308.63
  4. Step 4: Simplify right side
    13,170.11x = 65,357,469.37
  5. Step 5: Solve for x
    x = 65,357,469.37/13,170.11
  6. Step 6: Final answer
    x = 4,962.56

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