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Finding the Fourth Proportional to 8,241.77, 12,358.90 and 3,559.57

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Solution

The fourth proportional to 8,241.77, 12,358.90 and 3,559.57 is: 5,337.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.77 : 12,358.90 = 3,559.57 : x
  2. Step 2: Convert to fraction form
    8,241.77/12,358.90 = 3,559.57/x
  3. Step 3: Cross multiply
    8,241.77x = 12,358.90 × 3,559.57
  4. Step 4: Simplify right side
    8,241.77x = 43,992,351.88
  5. Step 5: Solve for x
    x = 43,992,351.88/8,241.77
  6. Step 6: Final answer
    x = 5,337.73

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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.