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Finding the Fourth Proportional to 7,213.96, 10,812.06 and 5,747.08

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Solution

The fourth proportional to 7,213.96, 10,812.06 and 5,747.08 is: 8,613.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.96 : 10,812.06 = 5,747.08 : x
  2. Step 2: Convert to fraction form
    7,213.96/10,812.06 = 5,747.08/x
  3. Step 3: Cross multiply
    7,213.96x = 10,812.06 × 5,747.08
  4. Step 4: Simplify right side
    7,213.96x = 62,137,773.78
  5. Step 5: Solve for x
    x = 62,137,773.78/7,213.96
  6. Step 6: Final answer
    x = 8,613.55

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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.