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Finding the Fourth Proportional to 8,241.32, 12,345.47 and 3,792.87

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Solution

The fourth proportional to 8,241.32, 12,345.47 and 3,792.87 is: 5,681.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.32 : 12,345.47 = 3,792.87 : x
  2. Step 2: Convert to fraction form
    8,241.32/12,345.47 = 3,792.87/x
  3. Step 3: Cross multiply
    8,241.32x = 12,345.47 × 3,792.87
  4. Step 4: Simplify right side
    8,241.32x = 46,824,743.83
  5. Step 5: Solve for x
    x = 46,824,743.83/8,241.32
  6. Step 6: Final answer
    x = 5,681.71

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