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Finding the Fourth Proportional to 7,144.92, 10,717.28 and 6,968.44

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Solution

The fourth proportional to 7,144.92, 10,717.28 and 6,968.44 is: 10,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.92 : 10,717.28 = 6,968.44 : x
  2. Step 2: Convert to fraction form
    7,144.92/10,717.28 = 6,968.44/x
  3. Step 3: Cross multiply
    7,144.92x = 10,717.28 × 6,968.44
  4. Step 4: Simplify right side
    7,144.92x = 74,682,722.64
  5. Step 5: Solve for x
    x = 74,682,722.64/7,144.92
  6. Step 6: Final answer
    x = 10,452.56

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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.