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Finding the Fourth Proportional to 18,766.36, 28,154.86 and 7,077.32

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Solution

The fourth proportional to 18,766.36, 28,154.86 and 7,077.32 is: 10,617.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.36 : 28,154.86 = 7,077.32 : x
  2. Step 2: Convert to fraction form
    18,766.36/28,154.86 = 7,077.32/x
  3. Step 3: Cross multiply
    18,766.36x = 28,154.86 × 7,077.32
  4. Step 4: Simplify right side
    18,766.36x = 199,260,953.78
  5. Step 5: Solve for x
    x = 199,260,953.78/18,766.36
  6. Step 6: Final answer
    x = 10,617.99

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