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Finding the Fourth Proportional to 29,221.76, 43,832.96 and 8,445.44

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Solution

The fourth proportional to 29,221.76, 43,832.96 and 8,445.44 is: 12,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,221.76 : 43,832.96 = 8,445.44 : x
  2. Step 2: Convert to fraction form
    29,221.76/43,832.96 = 8,445.44/x
  3. Step 3: Cross multiply
    29,221.76x = 43,832.96 × 8,445.44
  4. Step 4: Simplify right side
    29,221.76x = 370,188,633.70
  5. Step 5: Solve for x
    x = 370,188,633.70/29,221.76
  6. Step 6: Final answer
    x = 12,668.25

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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.