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Finding the Fourth Proportional to 3,455.96, 4,793.64 and 3,331.42

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Solution

The fourth proportional to 3,455.96, 4,793.64 and 3,331.42 is: 4,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.96 : 4,793.64 = 3,331.42 : x
  2. Step 2: Convert to fraction form
    3,455.96/4,793.64 = 3,331.42/x
  3. Step 3: Cross multiply
    3,455.96x = 4,793.64 × 3,331.42
  4. Step 4: Simplify right side
    3,455.96x = 15,969,628.17
  5. Step 5: Solve for x
    x = 15,969,628.17/3,455.96
  6. Step 6: Final answer
    x = 4,620.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.