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Finding the Fourth Proportional to 18,528.50, 27,797.97 and 7,442.97

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Solution

The fourth proportional to 18,528.50, 27,797.97 and 7,442.97 is: 11,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.50 : 27,797.97 = 7,442.97 : x
  2. Step 2: Convert to fraction form
    18,528.50/27,797.97 = 7,442.97/x
  3. Step 3: Cross multiply
    18,528.50x = 27,797.97 × 7,442.97
  4. Step 4: Simplify right side
    18,528.50x = 206,899,456.77
  5. Step 5: Solve for x
    x = 206,899,456.77/18,528.50
  6. Step 6: Final answer
    x = 11,166.55

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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.