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Finding the Fourth Proportional to 8,484.42, 11,694.87 and 6,712.68

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Solution

The fourth proportional to 8,484.42, 11,694.87 and 6,712.68 is: 9,252.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.42 : 11,694.87 = 6,712.68 : x
  2. Step 2: Convert to fraction form
    8,484.42/11,694.87 = 6,712.68/x
  3. Step 3: Cross multiply
    8,484.42x = 11,694.87 × 6,712.68
  4. Step 4: Simplify right side
    8,484.42x = 78,503,919.95
  5. Step 5: Solve for x
    x = 78,503,919.95/8,484.42
  6. Step 6: Final answer
    x = 9,252.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.