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Finding the Fourth Proportional to 7,994.82, 11,039.82 and 5,015.78

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Solution

The fourth proportional to 7,994.82, 11,039.82 and 5,015.78 is: 6,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.82 : 11,039.82 = 5,015.78 : x
  2. Step 2: Convert to fraction form
    7,994.82/11,039.82 = 5,015.78/x
  3. Step 3: Cross multiply
    7,994.82x = 11,039.82 × 5,015.78
  4. Step 4: Simplify right side
    7,994.82x = 55,373,308.36
  5. Step 5: Solve for x
    x = 55,373,308.36/7,994.82
  6. Step 6: Final answer
    x = 6,926.15

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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.