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Finding the Fourth Proportional to 4,791.94, 7,198.80 and 4,135.84

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Solution

The fourth proportional to 4,791.94, 7,198.80 and 4,135.84 is: 6,213.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.94 : 7,198.80 = 4,135.84 : x
  2. Step 2: Convert to fraction form
    4,791.94/7,198.80 = 4,135.84/x
  3. Step 3: Cross multiply
    4,791.94x = 7,198.80 × 4,135.84
  4. Step 4: Simplify right side
    4,791.94x = 29,773,084.99
  5. Step 5: Solve for x
    x = 29,773,084.99/4,791.94
  6. Step 6: Final answer
    x = 6,213.16

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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.