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Finding the Fourth Proportional to 34,629.12, 47,792.16 and 20,486.88

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Solution

The fourth proportional to 34,629.12, 47,792.16 and 20,486.88 is: 28,274.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,629.12 : 47,792.16 = 20,486.88 : x
  2. Step 2: Convert to fraction form
    34,629.12/47,792.16 = 20,486.88/x
  3. Step 3: Cross multiply
    34,629.12x = 47,792.16 × 20,486.88
  4. Step 4: Simplify right side
    34,629.12x = 979,112,246.86
  5. Step 5: Solve for x
    x = 979,112,246.86/34,629.12
  6. Step 6: Final answer
    x = 28,274.25

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