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Finding the Fourth Proportional to 43,677.20, 65,515.80 and 10,845.20

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Solution

The fourth proportional to 43,677.20, 65,515.80 and 10,845.20 is: 16,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,677.20 : 65,515.80 = 10,845.20 : x
  2. Step 2: Convert to fraction form
    43,677.20/65,515.80 = 10,845.20/x
  3. Step 3: Cross multiply
    43,677.20x = 65,515.80 × 10,845.20
  4. Step 4: Simplify right side
    43,677.20x = 710,531,954.16
  5. Step 5: Solve for x
    x = 710,531,954.16/43,677.20
  6. Step 6: Final answer
    x = 16,267.80

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