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Finding the Fourth Proportional to 33,431.86, 50,114.80 and 15,913.99

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Solution

The fourth proportional to 33,431.86, 50,114.80 and 15,913.99 is: 23,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,431.86 : 50,114.80 = 15,913.99 : x
  2. Step 2: Convert to fraction form
    33,431.86/50,114.80 = 15,913.99/x
  3. Step 3: Cross multiply
    33,431.86x = 50,114.80 × 15,913.99
  4. Step 4: Simplify right side
    33,431.86x = 797,526,426.05
  5. Step 5: Solve for x
    x = 797,526,426.05/33,431.86
  6. Step 6: Final answer
    x = 23,855.28

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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.