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Finding the Fourth Proportional to 71,613.68, 107,369.41 and 33,641.76

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Solution

The fourth proportional to 71,613.68, 107,369.41 and 33,641.76 is: 50,438.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,613.68 : 107,369.41 = 33,641.76 : x
  2. Step 2: Convert to fraction form
    71,613.68/107,369.41 = 33,641.76/x
  3. Step 3: Cross multiply
    71,613.68x = 107,369.41 × 33,641.76
  4. Step 4: Simplify right side
    71,613.68x = 3,612,095,922.56
  5. Step 5: Solve for x
    x = 3,612,095,922.56/71,613.68
  6. Step 6: Final answer
    x = 50,438.63

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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.