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Finding the Fourth Proportional to 5,266.80, 7,266.96 and 3,170.88

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Solution

The fourth proportional to 5,266.80, 7,266.96 and 3,170.88 is: 4,375.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.80 : 7,266.96 = 3,170.88 : x
  2. Step 2: Convert to fraction form
    5,266.80/7,266.96 = 3,170.88/x
  3. Step 3: Cross multiply
    5,266.80x = 7,266.96 × 3,170.88
  4. Step 4: Simplify right side
    5,266.80x = 23,042,658.12
  5. Step 5: Solve for x
    x = 23,042,658.12/5,266.80
  6. Step 6: Final answer
    x = 4,375.08

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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.