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Finding the Fourth Proportional to 7,074.56, 10,608.20 and 3,175.62

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Solution

The fourth proportional to 7,074.56, 10,608.20 and 3,175.62 is: 4,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.56 : 10,608.20 = 3,175.62 : x
  2. Step 2: Convert to fraction form
    7,074.56/10,608.20 = 3,175.62/x
  3. Step 3: Cross multiply
    7,074.56x = 10,608.20 × 3,175.62
  4. Step 4: Simplify right side
    7,074.56x = 33,687,612.08
  5. Step 5: Solve for x
    x = 33,687,612.08/7,074.56
  6. Step 6: Final answer
    x = 4,761.80

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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.