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Finding the Fourth Proportional to 3,289.54, 4,926.43 and 2,397.68

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Solution

The fourth proportional to 3,289.54, 4,926.43 and 2,397.68 is: 3,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.54 : 4,926.43 = 2,397.68 : x
  2. Step 2: Convert to fraction form
    3,289.54/4,926.43 = 2,397.68/x
  3. Step 3: Cross multiply
    3,289.54x = 4,926.43 × 2,397.68
  4. Step 4: Simplify right side
    3,289.54x = 11,812,002.68
  5. Step 5: Solve for x
    x = 11,812,002.68/3,289.54
  6. Step 6: Final answer
    x = 3,590.78

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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.