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Finding the Fourth Proportional to 18,353.52, 25,318.04 and 11,627.28

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Solution

The fourth proportional to 18,353.52, 25,318.04 and 11,627.28 is: 16,039.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353.52 : 25,318.04 = 11,627.28 : x
  2. Step 2: Convert to fraction form
    18,353.52/25,318.04 = 11,627.28/x
  3. Step 3: Cross multiply
    18,353.52x = 25,318.04 × 11,627.28
  4. Step 4: Simplify right side
    18,353.52x = 294,379,881.99
  5. Step 5: Solve for x
    x = 294,379,881.99/18,353.52
  6. Step 6: Final answer
    x = 16,039.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.