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Finding the Fourth Proportional to 7,167.98, 10,757.90 and 3,660.58

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Solution

The fourth proportional to 7,167.98, 10,757.90 and 3,660.58 is: 5,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167.98 : 10,757.90 = 3,660.58 : x
  2. Step 2: Convert to fraction form
    7,167.98/10,757.90 = 3,660.58/x
  3. Step 3: Cross multiply
    7,167.98x = 10,757.90 × 3,660.58
  4. Step 4: Simplify right side
    7,167.98x = 39,380,153.58
  5. Step 5: Solve for x
    x = 39,380,153.58/7,167.98
  6. Step 6: Final answer
    x = 5,493.90

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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.