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Finding the Fourth Proportional to 18,468.56, 27,696.90 and 7,935.72

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Solution

The fourth proportional to 18,468.56, 27,696.90 and 7,935.72 is: 11,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.56 : 27,696.90 = 7,935.72 : x
  2. Step 2: Convert to fraction form
    18,468.56/27,696.90 = 7,935.72/x
  3. Step 3: Cross multiply
    18,468.56x = 27,696.90 × 7,935.72
  4. Step 4: Simplify right side
    18,468.56x = 219,794,843.27
  5. Step 5: Solve for x
    x = 219,794,843.27/18,468.56
  6. Step 6: Final answer
    x = 11,901.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.