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Finding the Fourth Proportional to 21,375.44, 32,068.92 and 8,228.24

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Solution

The fourth proportional to 21,375.44, 32,068.92 and 8,228.24 is: 12,344.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.44 : 32,068.92 = 8,228.24 : x
  2. Step 2: Convert to fraction form
    21,375.44/32,068.92 = 8,228.24/x
  3. Step 3: Cross multiply
    21,375.44x = 32,068.92 × 8,228.24
  4. Step 4: Simplify right side
    21,375.44x = 263,870,770.30
  5. Step 5: Solve for x
    x = 263,870,770.30/21,375.44
  6. Step 6: Final answer
    x = 12,344.58

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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.