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Finding the Fourth Proportional to 17,794.76, 26,695.94 and 5,315.76

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Solution

The fourth proportional to 17,794.76, 26,695.94 and 5,315.76 is: 7,974.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,794.76 : 26,695.94 = 5,315.76 : x
  2. Step 2: Convert to fraction form
    17,794.76/26,695.94 = 5,315.76/x
  3. Step 3: Cross multiply
    17,794.76x = 26,695.94 × 5,315.76
  4. Step 4: Simplify right side
    17,794.76x = 141,909,183.44
  5. Step 5: Solve for x
    x = 141,909,183.44/17,794.76
  6. Step 6: Final answer
    x = 7,974.78

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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.