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Finding the Fourth Proportional to 15,648.78, 23,459.78 and 5,786.22

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Solution

The fourth proportional to 15,648.78, 23,459.78 and 5,786.22 is: 8,674.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648.78 : 23,459.78 = 5,786.22 : x
  2. Step 2: Convert to fraction form
    15,648.78/23,459.78 = 5,786.22/x
  3. Step 3: Cross multiply
    15,648.78x = 23,459.78 × 5,786.22
  4. Step 4: Simplify right side
    15,648.78x = 135,743,448.23
  5. Step 5: Solve for x
    x = 135,743,448.23/15,648.78
  6. Step 6: Final answer
    x = 8,674.38

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