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Finding the Fourth Proportional to 18,719.82, 28,072.17 and 9,356.22

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Solution

The fourth proportional to 18,719.82, 28,072.17 and 9,356.22 is: 14,030.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.82 : 28,072.17 = 9,356.22 : x
  2. Step 2: Convert to fraction form
    18,719.82/28,072.17 = 9,356.22/x
  3. Step 3: Cross multiply
    18,719.82x = 28,072.17 × 9,356.22
  4. Step 4: Simplify right side
    18,719.82x = 262,649,398.40
  5. Step 5: Solve for x
    x = 262,649,398.40/18,719.82
  6. Step 6: Final answer
    x = 14,030.55

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