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Finding the Fourth Proportional to 20,093.67, 27,725.09 and 12,134.39

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Solution

The fourth proportional to 20,093.67, 27,725.09 and 12,134.39 is: 16,742.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,093.67 : 27,725.09 = 12,134.39 : x
  2. Step 2: Convert to fraction form
    20,093.67/27,725.09 = 12,134.39/x
  3. Step 3: Cross multiply
    20,093.67x = 27,725.09 × 12,134.39
  4. Step 4: Simplify right side
    20,093.67x = 336,426,855.55
  5. Step 5: Solve for x
    x = 336,426,855.55/20,093.67
  6. Step 6: Final answer
    x = 16,742.93

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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.