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Finding the Fourth Proportional to 4,993.16, 7,489.32 and 2,654.42

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Solution

The fourth proportional to 4,993.16, 7,489.32 and 2,654.42 is: 3,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.16 : 7,489.32 = 2,654.42 : x
  2. Step 2: Convert to fraction form
    4,993.16/7,489.32 = 2,654.42/x
  3. Step 3: Cross multiply
    4,993.16x = 7,489.32 × 2,654.42
  4. Step 4: Simplify right side
    4,993.16x = 19,879,800.79
  5. Step 5: Solve for x
    x = 19,879,800.79/4,993.16
  6. Step 6: Final answer
    x = 3,981.41

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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.