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Finding the Fourth Proportional to 4,983.11, 7,474.21 and 1,861.63

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Solution

The fourth proportional to 4,983.11, 7,474.21 and 1,861.63 is: 2,792.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,983.11 : 7,474.21 = 1,861.63 : x
  2. Step 2: Convert to fraction form
    4,983.11/7,474.21 = 1,861.63/x
  3. Step 3: Cross multiply
    4,983.11x = 7,474.21 × 1,861.63
  4. Step 4: Simplify right side
    4,983.11x = 13,914,213.56
  5. Step 5: Solve for x
    x = 13,914,213.56/4,983.11
  6. Step 6: Final answer
    x = 2,792.28

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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.