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Finding the Fourth Proportional to 33,636.80, 50,455.20 and 13,893.66

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Solution

The fourth proportional to 33,636.80, 50,455.20 and 13,893.66 is: 20,840.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,636.80 : 50,455.20 = 13,893.66 : x
  2. Step 2: Convert to fraction form
    33,636.80/50,455.20 = 13,893.66/x
  3. Step 3: Cross multiply
    33,636.80x = 50,455.20 × 13,893.66
  4. Step 4: Simplify right side
    33,636.80x = 701,007,446.13
  5. Step 5: Solve for x
    x = 701,007,446.13/33,636.80
  6. Step 6: Final answer
    x = 20,840.49

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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.