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Finding the Fourth Proportional to 22,486.94, 33,724.53 and 6,687.72

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Solution

The fourth proportional to 22,486.94, 33,724.53 and 6,687.72 is: 10,029.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,486.94 : 33,724.53 = 6,687.72 : x
  2. Step 2: Convert to fraction form
    22,486.94/33,724.53 = 6,687.72/x
  3. Step 3: Cross multiply
    22,486.94x = 33,724.53 × 6,687.72
  4. Step 4: Simplify right side
    22,486.94x = 225,540,213.77
  5. Step 5: Solve for x
    x = 225,540,213.77/22,486.94
  6. Step 6: Final answer
    x = 10,029.83

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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.