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Finding the Fourth Proportional to 6,942.67, 9,580.86 and 3,798.86

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Solution

The fourth proportional to 6,942.67, 9,580.86 and 3,798.86 is: 5,242.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.67 : 9,580.86 = 3,798.86 : x
  2. Step 2: Convert to fraction form
    6,942.67/9,580.86 = 3,798.86/x
  3. Step 3: Cross multiply
    6,942.67x = 9,580.86 × 3,798.86
  4. Step 4: Simplify right side
    6,942.67x = 36,396,297.92
  5. Step 5: Solve for x
    x = 36,396,297.92/6,942.67
  6. Step 6: Final answer
    x = 5,242.41

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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.