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Finding the Fourth Proportional to 43,459.20, 65,203.20 and 13,881.60

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Solution

The fourth proportional to 43,459.20, 65,203.20 and 13,881.60 is: 20,827.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,459.20 : 65,203.20 = 13,881.60 : x
  2. Step 2: Convert to fraction form
    43,459.20/65,203.20 = 13,881.60/x
  3. Step 3: Cross multiply
    43,459.20x = 65,203.20 × 13,881.60
  4. Step 4: Simplify right side
    43,459.20x = 905,124,741.12
  5. Step 5: Solve for x
    x = 905,124,741.12/43,459.20
  6. Step 6: Final answer
    x = 20,827.00

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