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Finding the Fourth Proportional to 33,609.86, 50,403.02 and 9,911.12

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Solution

The fourth proportional to 33,609.86, 50,403.02 and 9,911.12 is: 14,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,609.86 : 50,403.02 = 9,911.12 : x
  2. Step 2: Convert to fraction form
    33,609.86/50,403.02 = 9,911.12/x
  3. Step 3: Cross multiply
    33,609.86x = 50,403.02 × 9,911.12
  4. Step 4: Simplify right side
    33,609.86x = 499,550,152.35
  5. Step 5: Solve for x
    x = 499,550,152.35/33,609.86
  6. Step 6: Final answer
    x = 14,863.20

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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.