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Finding the Fourth Proportional to 6,791.70, 9,372.69 and 3,807.54

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Solution

The fourth proportional to 6,791.70, 9,372.69 and 3,807.54 is: 5,254.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,791.70 : 9,372.69 = 3,807.54 : x
  2. Step 2: Convert to fraction form
    6,791.70/9,372.69 = 3,807.54/x
  3. Step 3: Cross multiply
    6,791.70x = 9,372.69 × 3,807.54
  4. Step 4: Simplify right side
    6,791.70x = 35,686,892.08
  5. Step 5: Solve for x
    x = 35,686,892.08/6,791.70
  6. Step 6: Final answer
    x = 5,254.49

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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.