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Finding the Fourth Proportional to 18,472.20, 27,708.30 and 14,713.80

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Solution

The fourth proportional to 18,472.20, 27,708.30 and 14,713.80 is: 22,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472.20 : 27,708.30 = 14,713.80 : x
  2. Step 2: Convert to fraction form
    18,472.20/27,708.30 = 14,713.80/x
  3. Step 3: Cross multiply
    18,472.20x = 27,708.30 × 14,713.80
  4. Step 4: Simplify right side
    18,472.20x = 407,694,384.54
  5. Step 5: Solve for x
    x = 407,694,384.54/18,472.20
  6. Step 6: Final answer
    x = 22,070.70

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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.