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Finding the Fourth Proportional to 20,575.73, 30,863.57 and 6,724.73

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Solution

The fourth proportional to 20,575.73, 30,863.57 and 6,724.73 is: 10,087.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,575.73 : 30,863.57 = 6,724.73 : x
  2. Step 2: Convert to fraction form
    20,575.73/30,863.57 = 6,724.73/x
  3. Step 3: Cross multiply
    20,575.73x = 30,863.57 × 6,724.73
  4. Step 4: Simplify right side
    20,575.73x = 207,549,175.09
  5. Step 5: Solve for x
    x = 207,549,175.09/20,575.73
  6. Step 6: Final answer
    x = 10,087.09

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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.