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Finding the Fourth Proportional to 9,198.01, 12,699.71 and 7,183.69

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Solution

The fourth proportional to 9,198.01, 12,699.71 and 7,183.69 is: 9,918.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.01 : 12,699.71 = 7,183.69 : x
  2. Step 2: Convert to fraction form
    9,198.01/12,699.71 = 7,183.69/x
  3. Step 3: Cross multiply
    9,198.01x = 12,699.71 × 7,183.69
  4. Step 4: Simplify right side
    9,198.01x = 91,230,743.81
  5. Step 5: Solve for x
    x = 91,230,743.81/9,198.01
  6. Step 6: Final answer
    x = 9,918.54

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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.