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Finding the Fourth Proportional to 22,212.16, 33,318.16 and 6,629.76

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Solution

The fourth proportional to 22,212.16, 33,318.16 and 6,629.76 is: 9,944.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.16 : 33,318.16 = 6,629.76 : x
  2. Step 2: Convert to fraction form
    22,212.16/33,318.16 = 6,629.76/x
  3. Step 3: Cross multiply
    22,212.16x = 33,318.16 × 6,629.76
  4. Step 4: Simplify right side
    22,212.16x = 220,891,404.44
  5. Step 5: Solve for x
    x = 220,891,404.44/22,212.16
  6. Step 6: Final answer
    x = 9,944.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.