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Finding the Fourth Proportional to 9,169.92, 13,757.72 and 3,326.56

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Solution

The fourth proportional to 9,169.92, 13,757.72 and 3,326.56 is: 4,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.92 : 13,757.72 = 3,326.56 : x
  2. Step 2: Convert to fraction form
    9,169.92/13,757.72 = 3,326.56/x
  3. Step 3: Cross multiply
    9,169.92x = 13,757.72 × 3,326.56
  4. Step 4: Simplify right side
    9,169.92x = 45,765,881.04
  5. Step 5: Solve for x
    x = 45,765,881.04/9,169.92
  6. Step 6: Final answer
    x = 4,990.87

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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.