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Finding the Fourth Proportional to 4,791.22, 7,186.83 and 2,847.22

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Solution

The fourth proportional to 4,791.22, 7,186.83 and 2,847.22 is: 4,270.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.22 : 7,186.83 = 2,847.22 : x
  2. Step 2: Convert to fraction form
    4,791.22/7,186.83 = 2,847.22/x
  3. Step 3: Cross multiply
    4,791.22x = 7,186.83 × 2,847.22
  4. Step 4: Simplify right side
    4,791.22x = 20,462,486.11
  5. Step 5: Solve for x
    x = 20,462,486.11/4,791.22
  6. Step 6: Final answer
    x = 4,270.83

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Similar ratio
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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.