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Finding the Fourth Proportional to 27,951.93, 41,930.84 and 13,915.44

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Solution

The fourth proportional to 27,951.93, 41,930.84 and 13,915.44 is: 20,874.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.93 : 41,930.84 = 13,915.44 : x
  2. Step 2: Convert to fraction form
    27,951.93/41,930.84 = 13,915.44/x
  3. Step 3: Cross multiply
    27,951.93x = 41,930.84 × 13,915.44
  4. Step 4: Simplify right side
    27,951.93x = 583,486,018.59
  5. Step 5: Solve for x
    x = 583,486,018.59/27,951.93
  6. Step 6: Final answer
    x = 20,874.62

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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.