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Finding the Fourth Proportional to 7,994.58, 11,988.99 and 3,377.94

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Solution

The fourth proportional to 7,994.58, 11,988.99 and 3,377.94 is: 5,065.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.58 : 11,988.99 = 3,377.94 : x
  2. Step 2: Convert to fraction form
    7,994.58/11,988.99 = 3,377.94/x
  3. Step 3: Cross multiply
    7,994.58x = 11,988.99 × 3,377.94
  4. Step 4: Simplify right side
    7,994.58x = 40,498,088.88
  5. Step 5: Solve for x
    x = 40,498,088.88/7,994.58
  6. Step 6: Final answer
    x = 5,065.69

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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.