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Finding the Fourth Proportional to 12,151.82, 18,235.94 and 4,755.36

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Solution

The fourth proportional to 12,151.82, 18,235.94 and 4,755.36 is: 7,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.82 : 18,235.94 = 4,755.36 : x
  2. Step 2: Convert to fraction form
    12,151.82/18,235.94 = 4,755.36/x
  3. Step 3: Cross multiply
    12,151.82x = 18,235.94 × 4,755.36
  4. Step 4: Simplify right side
    12,151.82x = 86,718,401.67
  5. Step 5: Solve for x
    x = 86,718,401.67/12,151.82
  6. Step 6: Final answer
    x = 7,136.25

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