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Finding the Fourth Proportional to 18,795.69, 28,198.80 and 9,424.35

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Solution

The fourth proportional to 18,795.69, 28,198.80 and 9,424.35 is: 14,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.69 : 28,198.80 = 9,424.35 : x
  2. Step 2: Convert to fraction form
    18,795.69/28,198.80 = 9,424.35/x
  3. Step 3: Cross multiply
    18,795.69x = 28,198.80 × 9,424.35
  4. Step 4: Simplify right side
    18,795.69x = 265,755,360.78
  5. Step 5: Solve for x
    x = 265,755,360.78/18,795.69
  6. Step 6: Final answer
    x = 14,139.16

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