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Finding the Fourth Proportional to 27,999.62, 41,977.22 and 13,951.99

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Solution

The fourth proportional to 27,999.62, 41,977.22 and 13,951.99 is: 20,916.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.62 : 41,977.22 = 13,951.99 : x
  2. Step 2: Convert to fraction form
    27,999.62/41,977.22 = 13,951.99/x
  3. Step 3: Cross multiply
    27,999.62x = 41,977.22 × 13,951.99
  4. Step 4: Simplify right side
    27,999.62x = 585,665,578.96
  5. Step 5: Solve for x
    x = 585,665,578.96/27,999.62
  6. Step 6: Final answer
    x = 20,916.92

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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.