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Finding the Fourth Proportional to 15,978.93, 23,968.26 and 4,132.68

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Solution

The fourth proportional to 15,978.93, 23,968.26 and 4,132.68 is: 6,198.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,978.93 : 23,968.26 = 4,132.68 : x
  2. Step 2: Convert to fraction form
    15,978.93/23,968.26 = 4,132.68/x
  3. Step 3: Cross multiply
    15,978.93x = 23,968.26 × 4,132.68
  4. Step 4: Simplify right side
    15,978.93x = 99,053,148.74
  5. Step 5: Solve for x
    x = 99,053,148.74/15,978.93
  6. Step 6: Final answer
    x = 6,198.99

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