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Finding the Fourth Proportional to 18,988.62, 26,202.42 and 11,031.18

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Solution

The fourth proportional to 18,988.62, 26,202.42 and 11,031.18 is: 15,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.62 : 26,202.42 = 11,031.18 : x
  2. Step 2: Convert to fraction form
    18,988.62/26,202.42 = 11,031.18/x
  3. Step 3: Cross multiply
    18,988.62x = 26,202.42 × 11,031.18
  4. Step 4: Simplify right side
    18,988.62x = 289,043,611.46
  5. Step 5: Solve for x
    x = 289,043,611.46/18,988.62
  6. Step 6: Final answer
    x = 15,221.94

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