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Finding the Fourth Proportional to 18,976.44, 28,464.66 and 5,125.44

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Solution

The fourth proportional to 18,976.44, 28,464.66 and 5,125.44 is: 7,688.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.44 : 28,464.66 = 5,125.44 : x
  2. Step 2: Convert to fraction form
    18,976.44/28,464.66 = 5,125.44/x
  3. Step 3: Cross multiply
    18,976.44x = 28,464.66 × 5,125.44
  4. Step 4: Simplify right side
    18,976.44x = 145,893,881.32
  5. Step 5: Solve for x
    x = 145,893,881.32/18,976.44
  6. Step 6: Final answer
    x = 7,688.16

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