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Finding the Fourth Proportional to 3,308.91, 4,938.24 and 3,174.96

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Solution

The fourth proportional to 3,308.91, 4,938.24 and 3,174.96 is: 4,738.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,308.91 : 4,938.24 = 3,174.96 : x
  2. Step 2: Convert to fraction form
    3,308.91/4,938.24 = 3,174.96/x
  3. Step 3: Cross multiply
    3,308.91x = 4,938.24 × 3,174.96
  4. Step 4: Simplify right side
    3,308.91x = 15,678,698.60
  5. Step 5: Solve for x
    x = 15,678,698.60/3,308.91
  6. Step 6: Final answer
    x = 4,738.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.