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Finding the Fourth Proportional to 33,189.75, 49,784.67 and 8,565.75

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Solution

The fourth proportional to 33,189.75, 49,784.67 and 8,565.75 is: 12,848.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,189.75 : 49,784.67 = 8,565.75 : x
  2. Step 2: Convert to fraction form
    33,189.75/49,784.67 = 8,565.75/x
  3. Step 3: Cross multiply
    33,189.75x = 49,784.67 × 8,565.75
  4. Step 4: Simplify right side
    33,189.75x = 426,443,037.05
  5. Step 5: Solve for x
    x = 426,443,037.05/33,189.75
  6. Step 6: Final answer
    x = 12,848.64

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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.