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Finding the Fourth Proportional to 43,338.30, 65,007.45 and 13,758.45

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Solution

The fourth proportional to 43,338.30, 65,007.45 and 13,758.45 is: 20,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,338.30 : 65,007.45 = 13,758.45 : x
  2. Step 2: Convert to fraction form
    43,338.30/65,007.45 = 13,758.45/x
  3. Step 3: Cross multiply
    43,338.30x = 65,007.45 × 13,758.45
  4. Step 4: Simplify right side
    43,338.30x = 894,401,750.45
  5. Step 5: Solve for x
    x = 894,401,750.45/43,338.30
  6. Step 6: Final answer
    x = 20,637.68

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