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Finding the Fourth Proportional to 7,791.46, 10,755.51 and 5,134.24

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Solution

The fourth proportional to 7,791.46, 10,755.51 and 5,134.24 is: 7,087.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.46 : 10,755.51 = 5,134.24 : x
  2. Step 2: Convert to fraction form
    7,791.46/10,755.51 = 5,134.24/x
  3. Step 3: Cross multiply
    7,791.46x = 10,755.51 × 5,134.24
  4. Step 4: Simplify right side
    7,791.46x = 55,221,369.66
  5. Step 5: Solve for x
    x = 55,221,369.66/7,791.46
  6. Step 6: Final answer
    x = 7,087.42

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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.