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Finding the Fourth Proportional to 16,857.44, 25,271.88 and 6,990.56

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Solution

The fourth proportional to 16,857.44, 25,271.88 and 6,990.56 is: 10,479.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,857.44 : 25,271.88 = 6,990.56 : x
  2. Step 2: Convert to fraction form
    16,857.44/25,271.88 = 6,990.56/x
  3. Step 3: Cross multiply
    16,857.44x = 25,271.88 × 6,990.56
  4. Step 4: Simplify right side
    16,857.44x = 176,664,593.45
  5. Step 5: Solve for x
    x = 176,664,593.45/16,857.44
  6. Step 6: Final answer
    x = 10,479.92

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