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Finding the Fourth Proportional to 20,498.68, 30,748.14 and 6,267.28

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Solution

The fourth proportional to 20,498.68, 30,748.14 and 6,267.28 is: 9,400.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.68 : 30,748.14 = 6,267.28 : x
  2. Step 2: Convert to fraction form
    20,498.68/30,748.14 = 6,267.28/x
  3. Step 3: Cross multiply
    20,498.68x = 30,748.14 × 6,267.28
  4. Step 4: Simplify right side
    20,498.68x = 192,707,202.86
  5. Step 5: Solve for x
    x = 192,707,202.86/20,498.68
  6. Step 6: Final answer
    x = 9,400.96

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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.