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Finding the Fourth Proportional to 18,265.28, 27,397.92 and 7,736.96

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Solution

The fourth proportional to 18,265.28, 27,397.92 and 7,736.96 is: 11,605.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.28 : 27,397.92 = 7,736.96 : x
  2. Step 2: Convert to fraction form
    18,265.28/27,397.92 = 7,736.96/x
  3. Step 3: Cross multiply
    18,265.28x = 27,397.92 × 7,736.96
  4. Step 4: Simplify right side
    18,265.28x = 211,976,611.12
  5. Step 5: Solve for x
    x = 211,976,611.12/18,265.28
  6. Step 6: Final answer
    x = 11,605.44

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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.