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Finding the Fourth Proportional to 4,949.78, 7,421.90 and 2,024.73

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Solution

The fourth proportional to 4,949.78, 7,421.90 and 2,024.73 is: 3,035.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,949.78 : 7,421.90 = 2,024.73 : x
  2. Step 2: Convert to fraction form
    4,949.78/7,421.90 = 2,024.73/x
  3. Step 3: Cross multiply
    4,949.78x = 7,421.90 × 2,024.73
  4. Step 4: Simplify right side
    4,949.78x = 15,027,333.46
  5. Step 5: Solve for x
    x = 15,027,333.46/4,949.78
  6. Step 6: Final answer
    x = 3,035.96

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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.