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Finding the Fourth Proportional to 21,345,978.33, 31,998,512.63 and 9,033,003.70

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Solution

The fourth proportional to 21,345,978.33, 31,998,512.63 and 9,033,003.70 is: 13,540,849.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345,978.33 : 31,998,512.63 = 9,033,003.70 : x
  2. Step 2: Convert to fraction form
    21,345,978.33/31,998,512.63 = 9,033,003.70/x
  3. Step 3: Cross multiply
    21,345,978.33x = 31,998,512.63 × 9,033,003.70
  4. Step 4: Simplify right side
    21,345,978.33x = 289,042,682,923,872.94
  5. Step 5: Solve for x
    x = 289,042,682,923,872.94/21,345,978.33
  6. Step 6: Final answer
    x = 13,540,849.64

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