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Finding the Fourth Proportional to 20,682.92, 30,997.04 and 7,522.65

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Solution

The fourth proportional to 20,682.92, 30,997.04 and 7,522.65 is: 11,274.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.92 : 30,997.04 = 7,522.65 : x
  2. Step 2: Convert to fraction form
    20,682.92/30,997.04 = 7,522.65/x
  3. Step 3: Cross multiply
    20,682.92x = 30,997.04 × 7,522.65
  4. Step 4: Simplify right side
    20,682.92x = 233,179,845.34
  5. Step 5: Solve for x
    x = 233,179,845.34/20,682.92
  6. Step 6: Final answer
    x = 11,274.03

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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.