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Finding the Fourth Proportional to 33,908.42, 50,856.76 and 8,948.68

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Solution

The fourth proportional to 33,908.42, 50,856.76 and 8,948.68 is: 13,421.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,908.42 : 50,856.76 = 8,948.68 : x
  2. Step 2: Convert to fraction form
    33,908.42/50,856.76 = 8,948.68/x
  3. Step 3: Cross multiply
    33,908.42x = 50,856.76 × 8,948.68
  4. Step 4: Simplify right side
    33,908.42x = 455,100,755.12
  5. Step 5: Solve for x
    x = 455,100,755.12/33,908.42
  6. Step 6: Final answer
    x = 13,421.47

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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.