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Finding the Fourth Proportional to 7,793.47, 10,755.21 and 4,256.74

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Solution

The fourth proportional to 7,793.47, 10,755.21 and 4,256.74 is: 5,874.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.47 : 10,755.21 = 4,256.74 : x
  2. Step 2: Convert to fraction form
    7,793.47/10,755.21 = 4,256.74/x
  3. Step 3: Cross multiply
    7,793.47x = 10,755.21 × 4,256.74
  4. Step 4: Simplify right side
    7,793.47x = 45,782,132.62
  5. Step 5: Solve for x
    x = 45,782,132.62/7,793.47
  6. Step 6: Final answer
    x = 5,874.42

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Half scale
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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.