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Finding the Fourth Proportional to 22,418.72, 33,611.67 and 7,623.66

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Solution

The fourth proportional to 22,418.72, 33,611.67 and 7,623.66 is: 11,429.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,418.72 : 33,611.67 = 7,623.66 : x
  2. Step 2: Convert to fraction form
    22,418.72/33,611.67 = 7,623.66/x
  3. Step 3: Cross multiply
    22,418.72x = 33,611.67 × 7,623.66
  4. Step 4: Simplify right side
    22,418.72x = 256,243,944.11
  5. Step 5: Solve for x
    x = 256,243,944.11/22,418.72
  6. Step 6: Final answer
    x = 11,429.91

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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.