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Finding the Fourth Proportional to 5,691.90, 8,536.14 and 2,404.20

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Solution

The fourth proportional to 5,691.90, 8,536.14 and 2,404.20 is: 3,605.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.90 : 8,536.14 = 2,404.20 : x
  2. Step 2: Convert to fraction form
    5,691.90/8,536.14 = 2,404.20/x
  3. Step 3: Cross multiply
    5,691.90x = 8,536.14 × 2,404.20
  4. Step 4: Simplify right side
    5,691.90x = 20,522,587.79
  5. Step 5: Solve for x
    x = 20,522,587.79/5,691.90
  6. Step 6: Final answer
    x = 3,605.58

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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.