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Finding the Fourth Proportional to 18,770.81, 25,904.91 and 10,812.89

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Solution

The fourth proportional to 18,770.81, 25,904.91 and 10,812.89 is: 14,922.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.81 : 25,904.91 = 10,812.89 : x
  2. Step 2: Convert to fraction form
    18,770.81/25,904.91 = 10,812.89/x
  3. Step 3: Cross multiply
    18,770.81x = 25,904.91 × 10,812.89
  4. Step 4: Simplify right side
    18,770.81x = 280,107,047.60
  5. Step 5: Solve for x
    x = 280,107,047.60/18,770.81
  6. Step 6: Final answer
    x = 14,922.48

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