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Finding the Fourth Proportional to 31,699.05, 43,744.40 and 18,270.01

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Solution

The fourth proportional to 31,699.05, 43,744.40 and 18,270.01 is: 25,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,699.05 : 43,744.40 = 18,270.01 : x
  2. Step 2: Convert to fraction form
    31,699.05/43,744.40 = 18,270.01/x
  3. Step 3: Cross multiply
    31,699.05x = 43,744.40 × 18,270.01
  4. Step 4: Simplify right side
    31,699.05x = 799,210,513.99
  5. Step 5: Solve for x
    x = 799,210,513.99/31,699.05
  6. Step 6: Final answer
    x = 25,212.45

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