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Finding the Fourth Proportional to 17,717.87, 26,573.14 and 7,850.85

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Solution

The fourth proportional to 17,717.87, 26,573.14 and 7,850.85 is: 11,774.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,717.87 : 26,573.14 = 7,850.85 : x
  2. Step 2: Convert to fraction form
    17,717.87/26,573.14 = 7,850.85/x
  3. Step 3: Cross multiply
    17,717.87x = 26,573.14 × 7,850.85
  4. Step 4: Simplify right side
    17,717.87x = 208,621,716.54
  5. Step 5: Solve for x
    x = 208,621,716.54/17,717.87
  6. Step 6: Final answer
    x = 11,774.65

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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.