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Finding the Fourth Proportional to 18,146.52, 25,046.28 and 11,855.28

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Solution

The fourth proportional to 18,146.52, 25,046.28 and 11,855.28 is: 16,362.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.52 : 25,046.28 = 11,855.28 : x
  2. Step 2: Convert to fraction form
    18,146.52/25,046.28 = 11,855.28/x
  3. Step 3: Cross multiply
    18,146.52x = 25,046.28 × 11,855.28
  4. Step 4: Simplify right side
    18,146.52x = 296,930,662.36
  5. Step 5: Solve for x
    x = 296,930,662.36/18,146.52
  6. Step 6: Final answer
    x = 16,362.95

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Why These Related Problems?

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