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Finding the Fourth Proportional to 20,484.27, 30,722.99 and 5,694.68

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Solution

The fourth proportional to 20,484.27, 30,722.99 and 5,694.68 is: 8,541.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.27 : 30,722.99 = 5,694.68 : x
  2. Step 2: Convert to fraction form
    20,484.27/30,722.99 = 5,694.68/x
  3. Step 3: Cross multiply
    20,484.27x = 30,722.99 × 5,694.68
  4. Step 4: Simplify right side
    20,484.27x = 174,957,645.03
  5. Step 5: Solve for x
    x = 174,957,645.03/20,484.27
  6. Step 6: Final answer
    x = 8,541.07

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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.