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Finding the Fourth Proportional to 11,997.96, 17,994.78 and 3,675.96

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Solution

The fourth proportional to 11,997.96, 17,994.78 and 3,675.96 is: 5,513.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.96 : 17,994.78 = 3,675.96 : x
  2. Step 2: Convert to fraction form
    11,997.96/17,994.78 = 3,675.96/x
  3. Step 3: Cross multiply
    11,997.96x = 17,994.78 × 3,675.96
  4. Step 4: Simplify right side
    11,997.96x = 66,148,091.49
  5. Step 5: Solve for x
    x = 66,148,091.49/11,997.96
  6. Step 6: Final answer
    x = 5,513.28

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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.