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Finding the Fourth Proportional to 11,611.35, 17,373.89 and 6,933.80

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Solution

The fourth proportional to 11,611.35, 17,373.89 and 6,933.80 is: 10,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,611.35 : 17,373.89 = 6,933.80 : x
  2. Step 2: Convert to fraction form
    11,611.35/17,373.89 = 6,933.80/x
  3. Step 3: Cross multiply
    11,611.35x = 17,373.89 × 6,933.80
  4. Step 4: Simplify right side
    11,611.35x = 120,467,139.25
  5. Step 5: Solve for x
    x = 120,467,139.25/11,611.35
  6. Step 6: Final answer
    x = 10,374.95

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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.