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Finding the Fourth Proportional to 5,355.74, 7,390.67 and 2,997.73

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Solution

The fourth proportional to 5,355.74, 7,390.67 and 2,997.73 is: 4,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.74 : 7,390.67 = 2,997.73 : x
  2. Step 2: Convert to fraction form
    5,355.74/7,390.67 = 2,997.73/x
  3. Step 3: Cross multiply
    5,355.74x = 7,390.67 × 2,997.73
  4. Step 4: Simplify right side
    5,355.74x = 22,155,233.18
  5. Step 5: Solve for x
    x = 22,155,233.18/5,355.74
  6. Step 6: Final answer
    x = 4,136.73

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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.