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Finding the Fourth Proportional to 4,791.70, 7,182.60 and 3,472.21

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Solution

The fourth proportional to 4,791.70, 7,182.60 and 3,472.21 is: 5,204.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.70 : 7,182.60 = 3,472.21 : x
  2. Step 2: Convert to fraction form
    4,791.70/7,182.60 = 3,472.21/x
  3. Step 3: Cross multiply
    4,791.70x = 7,182.60 × 3,472.21
  4. Step 4: Simplify right side
    4,791.70x = 24,939,495.55
  5. Step 5: Solve for x
    x = 24,939,495.55/4,791.70
  6. Step 6: Final answer
    x = 5,204.73

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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.