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Finding the Fourth Proportional to 15,605.82, 23,406.99 and 3,919.07

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Solution

The fourth proportional to 15,605.82, 23,406.99 and 3,919.07 is: 5,878.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.82 : 23,406.99 = 3,919.07 : x
  2. Step 2: Convert to fraction form
    15,605.82/23,406.99 = 3,919.07/x
  3. Step 3: Cross multiply
    15,605.82x = 23,406.99 × 3,919.07
  4. Step 4: Simplify right side
    15,605.82x = 91,733,515.26
  5. Step 5: Solve for x
    x = 91,733,515.26/15,605.82
  6. Step 6: Final answer
    x = 5,878.16

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