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Finding the Fourth Proportional to 12,772.22, 17,625.49 and 7,183.22

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Solution

The fourth proportional to 12,772.22, 17,625.49 and 7,183.22 is: 9,912.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.22 : 17,625.49 = 7,183.22 : x
  2. Step 2: Convert to fraction form
    12,772.22/17,625.49 = 7,183.22/x
  3. Step 3: Cross multiply
    12,772.22x = 17,625.49 × 7,183.22
  4. Step 4: Simplify right side
    12,772.22x = 126,607,666.19
  5. Step 5: Solve for x
    x = 126,607,666.19/12,772.22
  6. Step 6: Final answer
    x = 9,912.74

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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.