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Finding the Fourth Proportional to 7,098.72, 10,650.48 and 3,149.44

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Solution

The fourth proportional to 7,098.72, 10,650.48 and 3,149.44 is: 4,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.72 : 10,650.48 = 3,149.44 : x
  2. Step 2: Convert to fraction form
    7,098.72/10,650.48 = 3,149.44/x
  3. Step 3: Cross multiply
    7,098.72x = 10,650.48 × 3,149.44
  4. Step 4: Simplify right side
    7,098.72x = 33,543,047.73
  5. Step 5: Solve for x
    x = 33,543,047.73/7,098.72
  6. Step 6: Final answer
    x = 4,725.22

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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.