Home / 7,183.23-9,912.21-3,996.39

Finding the Fourth Proportional to 7,183.23, 9,912.21 and 3,996.39

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Solution

The fourth proportional to 7,183.23, 9,912.21 and 3,996.39 is: 5,514.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.23 : 9,912.21 = 3,996.39 : x
  2. Step 2: Convert to fraction form
    7,183.23/9,912.21 = 3,996.39/x
  3. Step 3: Cross multiply
    7,183.23x = 9,912.21 × 3,996.39
  4. Step 4: Simplify right side
    7,183.23x = 39,613,056.92
  5. Step 5: Solve for x
    x = 39,613,056.92/7,183.23
  6. Step 6: Final answer
    x = 5,514.66

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.