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Finding the Fourth Proportional to 20,793.42, 31,195.07 and 6,753.50

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Solution

The fourth proportional to 20,793.42, 31,195.07 and 6,753.50 is: 10,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.42 : 31,195.07 = 6,753.50 : x
  2. Step 2: Convert to fraction form
    20,793.42/31,195.07 = 6,753.50/x
  3. Step 3: Cross multiply
    20,793.42x = 31,195.07 × 6,753.50
  4. Step 4: Simplify right side
    20,793.42x = 210,675,715.50
  5. Step 5: Solve for x
    x = 210,675,715.50/20,793.42
  6. Step 6: Final answer
    x = 10,131.85

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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.