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Finding the Fourth Proportional to 12,448.72, 18,666.60 and 3,682.45

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Solution

The fourth proportional to 12,448.72, 18,666.60 and 3,682.45 is: 5,521.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.72 : 18,666.60 = 3,682.45 : x
  2. Step 2: Convert to fraction form
    12,448.72/18,666.60 = 3,682.45/x
  3. Step 3: Cross multiply
    12,448.72x = 18,666.60 × 3,682.45
  4. Step 4: Simplify right side
    12,448.72x = 68,738,821.17
  5. Step 5: Solve for x
    x = 68,738,821.17/12,448.72
  6. Step 6: Final answer
    x = 5,521.76

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