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Finding the Fourth Proportional to 11,994.45, 17,991.55 and 6,729.45

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Solution

The fourth proportional to 11,994.45, 17,991.55 and 6,729.45 is: 10,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.45 : 17,991.55 = 6,729.45 : x
  2. Step 2: Convert to fraction form
    11,994.45/17,991.55 = 6,729.45/x
  3. Step 3: Cross multiply
    11,994.45x = 17,991.55 × 6,729.45
  4. Step 4: Simplify right side
    11,994.45x = 121,073,236.15
  5. Step 5: Solve for x
    x = 121,073,236.15/11,994.45
  6. Step 6: Final answer
    x = 10,094.10

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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.