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Finding the Fourth Proportional to 3,693.84, 5,540.04 and 1,096.20

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Solution

The fourth proportional to 3,693.84, 5,540.04 and 1,096.20 is: 1,644.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,693.84 : 5,540.04 = 1,096.20 : x
  2. Step 2: Convert to fraction form
    3,693.84/5,540.04 = 1,096.20/x
  3. Step 3: Cross multiply
    3,693.84x = 5,540.04 × 1,096.20
  4. Step 4: Simplify right side
    3,693.84x = 6,072,991.85
  5. Step 5: Solve for x
    x = 6,072,991.85/3,693.84
  6. Step 6: Final answer
    x = 1,644.09

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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.