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Finding the Fourth Proportional to 7,793.91, 10,756.62 and 4,961.55

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Solution

The fourth proportional to 7,793.91, 10,756.62 and 4,961.55 is: 6,847.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,793.91 : 10,756.62 = 4,961.55 : x
  2. Step 2: Convert to fraction form
    7,793.91/10,756.62 = 4,961.55/x
  3. Step 3: Cross multiply
    7,793.91x = 10,756.62 × 4,961.55
  4. Step 4: Simplify right side
    7,793.91x = 53,369,507.96
  5. Step 5: Solve for x
    x = 53,369,507.96/7,793.91
  6. Step 6: Final answer
    x = 6,847.59

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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.