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Finding the Fourth Proportional to 5,691.96, 8,526.96 and 3,219.21

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Solution

The fourth proportional to 5,691.96, 8,526.96 and 3,219.21 is: 4,822.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.96 : 8,526.96 = 3,219.21 : x
  2. Step 2: Convert to fraction form
    5,691.96/8,526.96 = 3,219.21/x
  3. Step 3: Cross multiply
    5,691.96x = 8,526.96 × 3,219.21
  4. Step 4: Simplify right side
    5,691.96x = 27,450,074.90
  5. Step 5: Solve for x
    x = 27,450,074.90/5,691.96
  6. Step 6: Final answer
    x = 4,822.61

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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.