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Finding the Fourth Proportional to 17,793.90, 26,690.85 and 7,922.70

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Solution

The fourth proportional to 17,793.90, 26,690.85 and 7,922.70 is: 11,884.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,793.90 : 26,690.85 = 7,922.70 : x
  2. Step 2: Convert to fraction form
    17,793.90/26,690.85 = 7,922.70/x
  3. Step 3: Cross multiply
    17,793.90x = 26,690.85 × 7,922.70
  4. Step 4: Simplify right side
    17,793.90x = 211,463,597.30
  5. Step 5: Solve for x
    x = 211,463,597.30/17,793.90
  6. Step 6: Final answer
    x = 11,884.05

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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.