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Finding the Fourth Proportional to 17,697.92, 26,546.94 and 5,218.09

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Solution

The fourth proportional to 17,697.92, 26,546.94 and 5,218.09 is: 7,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,697.92 : 26,546.94 = 5,218.09 : x
  2. Step 2: Convert to fraction form
    17,697.92/26,546.94 = 5,218.09/x
  3. Step 3: Cross multiply
    17,697.92x = 26,546.94 × 5,218.09
  4. Step 4: Simplify right side
    17,697.92x = 138,524,255.78
  5. Step 5: Solve for x
    x = 138,524,255.78/17,697.92
  6. Step 6: Final answer
    x = 7,827.15

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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.