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Finding the Fourth Proportional to 16,471.62, 22,734.27 and 15,143.22

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Solution

The fourth proportional to 16,471.62, 22,734.27 and 15,143.22 is: 20,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,471.62 : 22,734.27 = 15,143.22 : x
  2. Step 2: Convert to fraction form
    16,471.62/22,734.27 = 15,143.22/x
  3. Step 3: Cross multiply
    16,471.62x = 22,734.27 × 15,143.22
  4. Step 4: Simplify right side
    16,471.62x = 344,270,052.15
  5. Step 5: Solve for x
    x = 344,270,052.15/16,471.62
  6. Step 6: Final answer
    x = 20,900.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.