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Finding the Fourth Proportional to 33,685.94, 50,520.28 and 9,987.96

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Solution

The fourth proportional to 33,685.94, 50,520.28 and 9,987.96 is: 14,979.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,685.94 : 50,520.28 = 9,987.96 : x
  2. Step 2: Convert to fraction form
    33,685.94/50,520.28 = 9,987.96/x
  3. Step 3: Cross multiply
    33,685.94x = 50,520.28 × 9,987.96
  4. Step 4: Simplify right side
    33,685.94x = 504,594,462.95
  5. Step 5: Solve for x
    x = 504,594,462.95/33,685.94
  6. Step 6: Final answer
    x = 14,979.38

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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.