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Finding the Fourth Proportional to 4,793.72, 7,190.98 and 1,330.98

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Solution

The fourth proportional to 4,793.72, 7,190.98 and 1,330.98 is: 1,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,793.72 : 7,190.98 = 1,330.98 : x
  2. Step 2: Convert to fraction form
    4,793.72/7,190.98 = 1,330.98/x
  3. Step 3: Cross multiply
    4,793.72x = 7,190.98 × 1,330.98
  4. Step 4: Simplify right side
    4,793.72x = 9,571,050.56
  5. Step 5: Solve for x
    x = 9,571,050.56/4,793.72
  6. Step 6: Final answer
    x = 1,996.58

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Double scale
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Similar ratio
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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.