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Finding the Fourth Proportional to 8,691.73, 11,994.48 and 4,712.83

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Solution

The fourth proportional to 8,691.73, 11,994.48 and 4,712.83 is: 6,503.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.73 : 11,994.48 = 4,712.83 : x
  2. Step 2: Convert to fraction form
    8,691.73/11,994.48 = 4,712.83/x
  3. Step 3: Cross multiply
    8,691.73x = 11,994.48 × 4,712.83
  4. Step 4: Simplify right side
    8,691.73x = 56,527,982.66
  5. Step 5: Solve for x
    x = 56,527,982.66/8,691.73
  6. Step 6: Final answer
    x = 6,503.65

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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.