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Finding the Fourth Proportional to 5,354.68, 7,390.02 and 2,997.40

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Solution

The fourth proportional to 5,354.68, 7,390.02 and 2,997.40 is: 4,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,354.68 : 7,390.02 = 2,997.40 : x
  2. Step 2: Convert to fraction form
    5,354.68/7,390.02 = 2,997.40/x
  3. Step 3: Cross multiply
    5,354.68x = 7,390.02 × 2,997.40
  4. Step 4: Simplify right side
    5,354.68x = 22,150,845.95
  5. Step 5: Solve for x
    x = 22,150,845.95/5,354.68
  6. Step 6: Final answer
    x = 4,136.73

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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.