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Finding the Fourth Proportional to 25,998.84, 35,878.72 and 15,786.97

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Solution

The fourth proportional to 25,998.84, 35,878.72 and 15,786.97 is: 21,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,998.84 : 35,878.72 = 15,786.97 : x
  2. Step 2: Convert to fraction form
    25,998.84/35,878.72 = 15,786.97/x
  3. Step 3: Cross multiply
    25,998.84x = 35,878.72 × 15,786.97
  4. Step 4: Simplify right side
    25,998.84x = 566,416,147.11
  5. Step 5: Solve for x
    x = 566,416,147.11/25,998.84
  6. Step 6: Final answer
    x = 21,786.21

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