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Finding the Fourth Proportional to 15,814.66, 23,713.94 and 5,280.90

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Solution

The fourth proportional to 15,814.66, 23,713.94 and 5,280.90 is: 7,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,814.66 : 23,713.94 = 5,280.90 : x
  2. Step 2: Convert to fraction form
    15,814.66/23,713.94 = 5,280.90/x
  3. Step 3: Cross multiply
    15,814.66x = 23,713.94 × 5,280.90
  4. Step 4: Simplify right side
    15,814.66x = 125,230,945.75
  5. Step 5: Solve for x
    x = 125,230,945.75/15,814.66
  6. Step 6: Final answer
    x = 7,918.66

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