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Finding the Fourth Proportional to 4,985.22, 7,471.36 and 2,207.73

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Solution

The fourth proportional to 4,985.22, 7,471.36 and 2,207.73 is: 3,308.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.22 : 7,471.36 = 2,207.73 : x
  2. Step 2: Convert to fraction form
    4,985.22/7,471.36 = 2,207.73/x
  3. Step 3: Cross multiply
    4,985.22x = 7,471.36 × 2,207.73
  4. Step 4: Simplify right side
    4,985.22x = 16,494,763.97
  5. Step 5: Solve for x
    x = 16,494,763.97/4,985.22
  6. Step 6: Final answer
    x = 3,308.73

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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.