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Finding the Fourth Proportional to 22,991.45, 31,731.95 and 19,157.00

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Solution

The fourth proportional to 22,991.45, 31,731.95 and 19,157.00 is: 26,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.45 : 31,731.95 = 19,157.00 : x
  2. Step 2: Convert to fraction form
    22,991.45/31,731.95 = 19,157.00/x
  3. Step 3: Cross multiply
    22,991.45x = 31,731.95 × 19,157.00
  4. Step 4: Simplify right side
    22,991.45x = 607,888,807.49
  5. Step 5: Solve for x
    x = 607,888,807.49/22,991.45
  6. Step 6: Final answer
    x = 26,439.78

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