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Finding the Fourth Proportional to 11,672.56, 17,493.16 and 6,399.68

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Solution

The fourth proportional to 11,672.56, 17,493.16 and 6,399.68 is: 9,590.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.56 : 17,493.16 = 6,399.68 : x
  2. Step 2: Convert to fraction form
    11,672.56/17,493.16 = 6,399.68/x
  3. Step 3: Cross multiply
    11,672.56x = 17,493.16 × 6,399.68
  4. Step 4: Simplify right side
    11,672.56x = 111,950,626.19
  5. Step 5: Solve for x
    x = 111,950,626.19/11,672.56
  6. Step 6: Final answer
    x = 9,590.92

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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.