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Finding the Fourth Proportional to 3,593.61, 5,390.33 and 1,928.30

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Solution

The fourth proportional to 3,593.61, 5,390.33 and 1,928.30 is: 2,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,593.61 : 5,390.33 = 1,928.30 : x
  2. Step 2: Convert to fraction form
    3,593.61/5,390.33 = 1,928.30/x
  3. Step 3: Cross multiply
    3,593.61x = 5,390.33 × 1,928.30
  4. Step 4: Simplify right side
    3,593.61x = 10,394,136.75
  5. Step 5: Solve for x
    x = 10,394,136.75/3,593.61
  6. Step 6: Final answer
    x = 2,892.39

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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.