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Finding the Fourth Proportional to 4,928.31, 7,393.28 and 1,642.41

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Solution

The fourth proportional to 4,928.31, 7,393.28 and 1,642.41 is: 2,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.31 : 7,393.28 = 1,642.41 : x
  2. Step 2: Convert to fraction form
    4,928.31/7,393.28 = 1,642.41/x
  3. Step 3: Cross multiply
    4,928.31x = 7,393.28 × 1,642.41
  4. Step 4: Simplify right side
    4,928.31x = 12,142,788.79
  5. Step 5: Solve for x
    x = 12,142,788.79/4,928.31
  6. Step 6: Final answer
    x = 2,463.88

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