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Finding the Fourth Proportional to 33,999.86, 50,999.80 and 12,935.03

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Solution

The fourth proportional to 33,999.86, 50,999.80 and 12,935.03 is: 19,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,999.86 : 50,999.80 = 12,935.03 : x
  2. Step 2: Convert to fraction form
    33,999.86/50,999.80 = 12,935.03/x
  3. Step 3: Cross multiply
    33,999.86x = 50,999.80 × 12,935.03
  4. Step 4: Simplify right side
    33,999.86x = 659,683,942.99
  5. Step 5: Solve for x
    x = 659,683,942.99/33,999.86
  6. Step 6: Final answer
    x = 19,402.55

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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.