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Finding the Fourth Proportional to 4,908.72, 7,361.03 and 1,984.97

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Solution

The fourth proportional to 4,908.72, 7,361.03 and 1,984.97 is: 2,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908.72 : 7,361.03 = 1,984.97 : x
  2. Step 2: Convert to fraction form
    4,908.72/7,361.03 = 1,984.97/x
  3. Step 3: Cross multiply
    4,908.72x = 7,361.03 × 1,984.97
  4. Step 4: Simplify right side
    4,908.72x = 14,611,376.99
  5. Step 5: Solve for x
    x = 14,611,376.99/4,908.72
  6. Step 6: Final answer
    x = 2,976.62

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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.