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Finding the Fourth Proportional to 12,772.09, 17,625.31 and 7,183.09

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Solution

The fourth proportional to 12,772.09, 17,625.31 and 7,183.09 is: 9,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.09 : 17,625.31 = 7,183.09 : x
  2. Step 2: Convert to fraction form
    12,772.09/17,625.31 = 7,183.09/x
  3. Step 3: Cross multiply
    12,772.09x = 17,625.31 × 7,183.09
  4. Step 4: Simplify right side
    12,772.09x = 126,604,188.01
  5. Step 5: Solve for x
    x = 126,604,188.01/12,772.09
  6. Step 6: Final answer
    x = 9,912.57

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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.