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Finding the Fourth Proportional to 5,644.99, 8,480.45 and 3,982.94

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Solution

The fourth proportional to 5,644.99, 8,480.45 and 3,982.94 is: 5,983.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,644.99 : 8,480.45 = 3,982.94 : x
  2. Step 2: Convert to fraction form
    5,644.99/8,480.45 = 3,982.94/x
  3. Step 3: Cross multiply
    5,644.99x = 8,480.45 × 3,982.94
  4. Step 4: Simplify right side
    5,644.99x = 33,777,091.08
  5. Step 5: Solve for x
    x = 33,777,091.08/5,644.99
  6. Step 6: Final answer
    x = 5,983.55

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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.