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Finding the Fourth Proportional to 11,991.96, 17,990.98 and 4,597.07

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Solution

The fourth proportional to 11,991.96, 17,990.98 and 4,597.07 is: 6,896.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.96 : 17,990.98 = 4,597.07 : x
  2. Step 2: Convert to fraction form
    11,991.96/17,990.98 = 4,597.07/x
  3. Step 3: Cross multiply
    11,991.96x = 17,990.98 × 4,597.07
  4. Step 4: Simplify right side
    11,991.96x = 82,705,692.98
  5. Step 5: Solve for x
    x = 82,705,692.98/11,991.96
  6. Step 6: Final answer
    x = 6,896.76

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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.