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Finding the Fourth Proportional to 43,105.36, 64,657.90 and 11,940.52

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Solution

The fourth proportional to 43,105.36, 64,657.90 and 11,940.52 is: 17,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,105.36 : 64,657.90 = 11,940.52 : x
  2. Step 2: Convert to fraction form
    43,105.36/64,657.90 = 11,940.52/x
  3. Step 3: Cross multiply
    43,105.36x = 64,657.90 × 11,940.52
  4. Step 4: Simplify right side
    43,105.36x = 772,048,948.11
  5. Step 5: Solve for x
    x = 772,048,948.11/43,105.36
  6. Step 6: Final answer
    x = 17,910.74

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