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Finding the Fourth Proportional to 12,551.02, 18,813.77 and 7,874.28

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Solution

The fourth proportional to 12,551.02, 18,813.77 and 7,874.28 is: 11,803.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.02 : 18,813.77 = 7,874.28 : x
  2. Step 2: Convert to fraction form
    12,551.02/18,813.77 = 7,874.28/x
  3. Step 3: Cross multiply
    12,551.02x = 18,813.77 × 7,874.28
  4. Step 4: Simplify right side
    12,551.02x = 148,144,959.56
  5. Step 5: Solve for x
    x = 148,144,959.56/12,551.02
  6. Step 6: Final answer
    x = 11,803.42

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