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Finding the Fourth Proportional to 20,005.41, 27,611.41 and 11,935.03

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Solution

The fourth proportional to 20,005.41, 27,611.41 and 11,935.03 is: 16,472.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.41 : 27,611.41 = 11,935.03 : x
  2. Step 2: Convert to fraction form
    20,005.41/27,611.41 = 11,935.03/x
  3. Step 3: Cross multiply
    20,005.41x = 27,611.41 × 11,935.03
  4. Step 4: Simplify right side
    20,005.41x = 329,542,907.83
  5. Step 5: Solve for x
    x = 329,542,907.83/20,005.41
  6. Step 6: Final answer
    x = 16,472.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.