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Finding the Fourth Proportional to 6,919.94, 9,550.94 and 4,231.62

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Solution

The fourth proportional to 6,919.94, 9,550.94 and 4,231.62 is: 5,840.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.94 : 9,550.94 = 4,231.62 : x
  2. Step 2: Convert to fraction form
    6,919.94/9,550.94 = 4,231.62/x
  3. Step 3: Cross multiply
    6,919.94x = 9,550.94 × 4,231.62
  4. Step 4: Simplify right side
    6,919.94x = 40,415,948.72
  5. Step 5: Solve for x
    x = 40,415,948.72/6,919.94
  6. Step 6: Final answer
    x = 5,840.51

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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.