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Finding the Fourth Proportional to 4,766.28, 7,133.87 and 4,311.60

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Solution

The fourth proportional to 4,766.28, 7,133.87 and 4,311.60 is: 6,453.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,766.28 : 7,133.87 = 4,311.60 : x
  2. Step 2: Convert to fraction form
    4,766.28/7,133.87 = 4,311.60/x
  3. Step 3: Cross multiply
    4,766.28x = 7,133.87 × 4,311.60
  4. Step 4: Simplify right side
    4,766.28x = 30,758,372.33
  5. Step 5: Solve for x
    x = 30,758,372.33/4,766.28
  6. Step 6: Final answer
    x = 6,453.33

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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.