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Finding the Fourth Proportional to 27,960.54, 41,948.31 and 12,168.97

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Solution

The fourth proportional to 27,960.54, 41,948.31 and 12,168.97 is: 18,256.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.54 : 41,948.31 = 12,168.97 : x
  2. Step 2: Convert to fraction form
    27,960.54/41,948.31 = 12,168.97/x
  3. Step 3: Cross multiply
    27,960.54x = 41,948.31 × 12,168.97
  4. Step 4: Simplify right side
    27,960.54x = 510,467,725.94
  5. Step 5: Solve for x
    x = 510,467,725.94/27,960.54
  6. Step 6: Final answer
    x = 18,256.72

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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.