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Finding the Fourth Proportional to 7,190.96, 9,926.20 and 4,207.73

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Solution

The fourth proportional to 7,190.96, 9,926.20 and 4,207.73 is: 5,808.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.96 : 9,926.20 = 4,207.73 : x
  2. Step 2: Convert to fraction form
    7,190.96/9,926.20 = 4,207.73/x
  3. Step 3: Cross multiply
    7,190.96x = 9,926.20 × 4,207.73
  4. Step 4: Simplify right side
    7,190.96x = 41,766,769.53
  5. Step 5: Solve for x
    x = 41,766,769.53/7,190.96
  6. Step 6: Final answer
    x = 5,808.23

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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.