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Finding the Fourth Proportional to 21,939.32, 32,832.42 and 17,944.40

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Solution

The fourth proportional to 21,939.32, 32,832.42 and 17,944.40 is: 26,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,939.32 : 32,832.42 = 17,944.40 : x
  2. Step 2: Convert to fraction form
    21,939.32/32,832.42 = 17,944.40/x
  3. Step 3: Cross multiply
    21,939.32x = 32,832.42 × 17,944.40
  4. Step 4: Simplify right side
    21,939.32x = 589,158,077.45
  5. Step 5: Solve for x
    x = 589,158,077.45/21,939.32
  6. Step 6: Final answer
    x = 26,853.98

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