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Finding the Fourth Proportional to 7,793.75, 10,755.38 and 4,256.95

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Solution

The fourth proportional to 7,793.75, 10,755.38 and 4,256.95 is: 5,874.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.75 : 10,755.38 = 4,256.95 : x
  2. Step 2: Convert to fraction form
    7,793.75/10,755.38 = 4,256.95/x
  3. Step 3: Cross multiply
    7,793.75x = 10,755.38 × 4,256.95
  4. Step 4: Simplify right side
    7,793.75x = 45,785,114.89
  5. Step 5: Solve for x
    x = 45,785,114.89/7,793.75
  6. Step 6: Final answer
    x = 5,874.59

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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.