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Finding the Fourth Proportional to 5,353.86, 7,388.20 and 2,996.22

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Solution

The fourth proportional to 5,353.86, 7,388.20 and 2,996.22 is: 4,134.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,353.86 : 7,388.20 = 2,996.22 : x
  2. Step 2: Convert to fraction form
    5,353.86/7,388.20 = 2,996.22/x
  3. Step 3: Cross multiply
    5,353.86x = 7,388.20 × 2,996.22
  4. Step 4: Simplify right side
    5,353.86x = 22,136,672.60
  5. Step 5: Solve for x
    x = 22,136,672.60/5,353.86
  6. Step 6: Final answer
    x = 4,134.71

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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.