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Finding the Fourth Proportional to 5,691.96, 8,532.81 and 2,405.25

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Solution

The fourth proportional to 5,691.96, 8,532.81 and 2,405.25 is: 3,605.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.96 : 8,532.81 = 2,405.25 : x
  2. Step 2: Convert to fraction form
    5,691.96/8,532.81 = 2,405.25/x
  3. Step 3: Cross multiply
    5,691.96x = 8,532.81 × 2,405.25
  4. Step 4: Simplify right side
    5,691.96x = 20,523,541.25
  5. Step 5: Solve for x
    x = 20,523,541.25/5,691.96
  6. Step 6: Final answer
    x = 3,605.71

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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.