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Finding the Fourth Proportional to 4,982.43, 7,472.75 and 1,861.73

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Solution

The fourth proportional to 4,982.43, 7,472.75 and 1,861.73 is: 2,792.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.43 : 7,472.75 = 1,861.73 : x
  2. Step 2: Convert to fraction form
    4,982.43/7,472.75 = 1,861.73/x
  3. Step 3: Cross multiply
    4,982.43x = 7,472.75 × 1,861.73
  4. Step 4: Simplify right side
    4,982.43x = 13,912,196.19
  5. Step 5: Solve for x
    x = 13,912,196.19/4,982.43
  6. Step 6: Final answer
    x = 2,792.25

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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.