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Finding the Fourth Proportional to 5,539.43, 7,644.43 and 3,021.56

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Solution

The fourth proportional to 5,539.43, 7,644.43 and 3,021.56 is: 4,169.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,539.43 : 7,644.43 = 3,021.56 : x
  2. Step 2: Convert to fraction form
    5,539.43/7,644.43 = 3,021.56/x
  3. Step 3: Cross multiply
    5,539.43x = 7,644.43 × 3,021.56
  4. Step 4: Simplify right side
    5,539.43x = 23,098,065.69
  5. Step 5: Solve for x
    x = 23,098,065.69/5,539.43
  6. Step 6: Final answer
    x = 4,169.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.