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Finding the Fourth Proportional to 3,994.92, 5,506.38 and 2,668.14

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Solution

The fourth proportional to 3,994.92, 5,506.38 and 2,668.14 is: 3,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.92 : 5,506.38 = 2,668.14 : x
  2. Step 2: Convert to fraction form
    3,994.92/5,506.38 = 2,668.14/x
  3. Step 3: Cross multiply
    3,994.92x = 5,506.38 × 2,668.14
  4. Step 4: Simplify right side
    3,994.92x = 14,691,792.73
  5. Step 5: Solve for x
    x = 14,691,792.73/3,994.92
  6. Step 6: Final answer
    x = 3,677.62

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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.