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Finding the Fourth Proportional to 7,994.76, 11,993.18 and 4,291.92

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Solution

The fourth proportional to 7,994.76, 11,993.18 and 4,291.92 is: 6,438.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.76 : 11,993.18 = 4,291.92 : x
  2. Step 2: Convert to fraction form
    7,994.76/11,993.18 = 4,291.92/x
  3. Step 3: Cross multiply
    7,994.76x = 11,993.18 × 4,291.92
  4. Step 4: Simplify right side
    7,994.76x = 51,473,747.65
  5. Step 5: Solve for x
    x = 51,473,747.65/7,994.76
  6. Step 6: Final answer
    x = 6,438.44

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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.