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Finding the Fourth Proportional to 11,994.02, 17,991.90 and 3,672.96

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Solution

The fourth proportional to 11,994.02, 17,991.90 and 3,672.96 is: 5,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.02 : 17,991.90 = 3,672.96 : x
  2. Step 2: Convert to fraction form
    11,994.02/17,991.90 = 3,672.96/x
  3. Step 3: Cross multiply
    11,994.02x = 17,991.90 × 3,672.96
  4. Step 4: Simplify right side
    11,994.02x = 66,083,420.70
  5. Step 5: Solve for x
    x = 66,083,420.70/11,994.02
  6. Step 6: Final answer
    x = 5,509.70

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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.