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Finding the Fourth Proportional to 22,611.66, 33,922.61 and 7,820.70

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Solution

The fourth proportional to 22,611.66, 33,922.61 and 7,820.70 is: 11,732.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.66 : 33,922.61 = 7,820.70 : x
  2. Step 2: Convert to fraction form
    22,611.66/33,922.61 = 7,820.70/x
  3. Step 3: Cross multiply
    22,611.66x = 33,922.61 × 7,820.70
  4. Step 4: Simplify right side
    22,611.66x = 265,298,556.03
  5. Step 5: Solve for x
    x = 265,298,556.03/22,611.66
  6. Step 6: Final answer
    x = 11,732.82

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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.