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Finding the Fourth Proportional to 17,553.78, 26,330.67 and 7,690.82

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Solution

The fourth proportional to 17,553.78, 26,330.67 and 7,690.82 is: 11,536.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,553.78 : 26,330.67 = 7,690.82 : x
  2. Step 2: Convert to fraction form
    17,553.78/26,330.67 = 7,690.82/x
  3. Step 3: Cross multiply
    17,553.78x = 26,330.67 × 7,690.82
  4. Step 4: Simplify right side
    17,553.78x = 202,504,311.80
  5. Step 5: Solve for x
    x = 202,504,311.80/17,553.78
  6. Step 6: Final answer
    x = 11,536.22

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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.