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Finding the Fourth Proportional to 18,604.57, 27,906.71 and 7,511.09

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Solution

The fourth proportional to 18,604.57, 27,906.71 and 7,511.09 is: 11,266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.57 : 27,906.71 = 7,511.09 : x
  2. Step 2: Convert to fraction form
    18,604.57/27,906.71 = 7,511.09/x
  3. Step 3: Cross multiply
    18,604.57x = 27,906.71 × 7,511.09
  4. Step 4: Simplify right side
    18,604.57x = 209,609,689.66
  5. Step 5: Solve for x
    x = 209,609,689.66/18,604.57
  6. Step 6: Final answer
    x = 11,266.57

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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.