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Finding the Fourth Proportional to 4,791.47, 6,613.46 and 3,728.99

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Solution

The fourth proportional to 4,791.47, 6,613.46 and 3,728.99 is: 5,146.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.47 : 6,613.46 = 3,728.99 : x
  2. Step 2: Convert to fraction form
    4,791.47/6,613.46 = 3,728.99/x
  3. Step 3: Cross multiply
    4,791.47x = 6,613.46 × 3,728.99
  4. Step 4: Simplify right side
    4,791.47x = 24,661,507.56
  5. Step 5: Solve for x
    x = 24,661,507.56/4,791.47
  6. Step 6: Final answer
    x = 5,146.96

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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.