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Finding the Fourth Proportional to 6,942.28, 9,580.36 and 3,798.48

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Solution

The fourth proportional to 6,942.28, 9,580.36 and 3,798.48 is: 5,241.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.28 : 9,580.36 = 3,798.48 : x
  2. Step 2: Convert to fraction form
    6,942.28/9,580.36 = 3,798.48/x
  3. Step 3: Cross multiply
    6,942.28x = 9,580.36 × 3,798.48
  4. Step 4: Simplify right side
    6,942.28x = 36,390,805.85
  5. Step 5: Solve for x
    x = 36,390,805.85/6,942.28
  6. Step 6: Final answer
    x = 5,241.91

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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.