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Finding the Fourth Proportional to 20,797.46, 31,200.28 and 6,754.88

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Solution

The fourth proportional to 20,797.46, 31,200.28 and 6,754.88 is: 10,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797.46 : 31,200.28 = 6,754.88 : x
  2. Step 2: Convert to fraction form
    20,797.46/31,200.28 = 6,754.88/x
  3. Step 3: Cross multiply
    20,797.46x = 31,200.28 × 6,754.88
  4. Step 4: Simplify right side
    20,797.46x = 210,754,147.37
  5. Step 5: Solve for x
    x = 210,754,147.37/20,797.46
  6. Step 6: Final answer
    x = 10,133.65

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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.