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Finding the Fourth Proportional to 18,608.26, 27,913.29 and 7,513.56

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Solution

The fourth proportional to 18,608.26, 27,913.29 and 7,513.56 is: 11,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.26 : 27,913.29 = 7,513.56 : x
  2. Step 2: Convert to fraction form
    18,608.26/27,913.29 = 7,513.56/x
  3. Step 3: Cross multiply
    18,608.26x = 27,913.29 × 7,513.56
  4. Step 4: Simplify right side
    18,608.26x = 209,728,179.21
  5. Step 5: Solve for x
    x = 209,728,179.21/18,608.26
  6. Step 6: Final answer
    x = 11,270.70

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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.