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Finding the Fourth Proportional to 8,452.73, 11,650.79 and 6,353.21

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Solution

The fourth proportional to 8,452.73, 11,650.79 and 6,353.21 is: 8,756.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,452.73 : 11,650.79 = 6,353.21 : x
  2. Step 2: Convert to fraction form
    8,452.73/11,650.79 = 6,353.21/x
  3. Step 3: Cross multiply
    8,452.73x = 11,650.79 × 6,353.21
  4. Step 4: Simplify right side
    8,452.73x = 74,019,915.54
  5. Step 5: Solve for x
    x = 74,019,915.54/8,452.73
  6. Step 6: Final answer
    x = 8,756.92

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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.