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Finding the Fourth Proportional to 29,211.69, 43,824.92 and 8,151.72

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Solution

The fourth proportional to 29,211.69, 43,824.92 and 8,151.72 is: 12,229.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,211.69 : 43,824.92 = 8,151.72 : x
  2. Step 2: Convert to fraction form
    29,211.69/43,824.92 = 8,151.72/x
  3. Step 3: Cross multiply
    29,211.69x = 43,824.92 × 8,151.72
  4. Step 4: Simplify right side
    29,211.69x = 357,248,476.86
  5. Step 5: Solve for x
    x = 357,248,476.86/29,211.69
  6. Step 6: Final answer
    x = 12,229.64

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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.