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Finding the Fourth Proportional to 33,612.96, 50,433.84 and 13,905.84

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Solution

The fourth proportional to 33,612.96, 50,433.84 and 13,905.84 is: 20,864.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,612.96 : 50,433.84 = 13,905.84 : x
  2. Step 2: Convert to fraction form
    33,612.96/50,433.84 = 13,905.84/x
  3. Step 3: Cross multiply
    33,612.96x = 50,433.84 × 13,905.84
  4. Step 4: Simplify right side
    33,612.96x = 701,324,909.63
  5. Step 5: Solve for x
    x = 701,324,909.63/33,612.96
  6. Step 6: Final answer
    x = 20,864.72

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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.