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Finding the Fourth Proportional to 33,685.86, 50,528.96 and 8,724.15

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Solution

The fourth proportional to 33,685.86, 50,528.96 and 8,724.15 is: 13,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,685.86 : 50,528.96 = 8,724.15 : x
  2. Step 2: Convert to fraction form
    33,685.86/50,528.96 = 8,724.15/x
  3. Step 3: Cross multiply
    33,685.86x = 50,528.96 × 8,724.15
  4. Step 4: Simplify right side
    33,685.86x = 440,822,226.38
  5. Step 5: Solve for x
    x = 440,822,226.38/33,685.86
  6. Step 6: Final answer
    x = 13,086.27

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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.