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Finding the Fourth Proportional to 7,994.40, 11,992.76 and 2,446.91

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Solution

The fourth proportional to 7,994.40, 11,992.76 and 2,446.91 is: 3,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.40 : 11,992.76 = 2,446.91 : x
  2. Step 2: Convert to fraction form
    7,994.40/11,992.76 = 2,446.91/x
  3. Step 3: Cross multiply
    7,994.40x = 11,992.76 × 2,446.91
  4. Step 4: Simplify right side
    7,994.40x = 29,345,186.32
  5. Step 5: Solve for x
    x = 29,345,186.32/7,994.40
  6. Step 6: Final answer
    x = 3,670.72

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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.