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Finding the Fourth Proportional to 26,953,918.40, 40,403,321.40 and 13,286,043.20

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Solution

The fourth proportional to 26,953,918.40, 40,403,321.40 and 13,286,043.20 is: 19,915,481.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,953,918.40 : 40,403,321.40 = 13,286,043.20 : x
  2. Step 2: Convert to fraction form
    26,953,918.40/40,403,321.40 = 13,286,043.20/x
  3. Step 3: Cross multiply
    26,953,918.40x = 40,403,321.40 × 13,286,043.20
  4. Step 4: Simplify right side
    26,953,918.40x = 536,800,273,543,884.44
  5. Step 5: Solve for x
    x = 536,800,273,543,884.44/26,953,918.40
  6. Step 6: Final answer
    x = 19,915,481.88

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