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Finding the Fourth Proportional to 21,375.50, 32,063.24 and 5,793.12

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Solution

The fourth proportional to 21,375.50, 32,063.24 and 5,793.12 is: 8,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.50 : 32,063.24 = 5,793.12 : x
  2. Step 2: Convert to fraction form
    21,375.50/32,063.24 = 5,793.12/x
  3. Step 3: Cross multiply
    21,375.50x = 32,063.24 × 5,793.12
  4. Step 4: Simplify right side
    21,375.50x = 185,746,211.39
  5. Step 5: Solve for x
    x = 185,746,211.39/21,375.50
  6. Step 6: Final answer
    x = 8,689.68

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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.