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Finding the Fourth Proportional to 33,691.68, 50,528.84 and 9,993.64

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Solution

The fourth proportional to 33,691.68, 50,528.84 and 9,993.64 is: 14,987.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,691.68 : 50,528.84 = 9,993.64 : x
  2. Step 2: Convert to fraction form
    33,691.68/50,528.84 = 9,993.64/x
  3. Step 3: Cross multiply
    33,691.68x = 50,528.84 × 9,993.64
  4. Step 4: Simplify right side
    33,691.68x = 504,967,036.58
  5. Step 5: Solve for x
    x = 504,967,036.58/33,691.68
  6. Step 6: Final answer
    x = 14,987.89

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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.