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Finding the Fourth Proportional to 4,996.29, 6,891.90 and 3,228.90

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Solution

The fourth proportional to 4,996.29, 6,891.90 and 3,228.90 is: 4,453.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,996.29 : 6,891.90 = 3,228.90 : x
  2. Step 2: Convert to fraction form
    4,996.29/6,891.90 = 3,228.90/x
  3. Step 3: Cross multiply
    4,996.29x = 6,891.90 × 3,228.90
  4. Step 4: Simplify right side
    4,996.29x = 22,253,255.91
  5. Step 5: Solve for x
    x = 22,253,255.91/4,996.29
  6. Step 6: Final answer
    x = 4,453.96

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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.