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Finding the Fourth Proportional to 25,318.99, 37,986.69 and 12,172.39

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Solution

The fourth proportional to 25,318.99, 37,986.69 and 12,172.39 is: 18,262.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.99 : 37,986.69 = 12,172.39 : x
  2. Step 2: Convert to fraction form
    25,318.99/37,986.69 = 12,172.39/x
  3. Step 3: Cross multiply
    25,318.99x = 37,986.69 × 12,172.39
  4. Step 4: Simplify right side
    25,318.99x = 462,388,805.49
  5. Step 5: Solve for x
    x = 462,388,805.49/25,318.99
  6. Step 6: Final answer
    x = 18,262.53

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