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Finding the Fourth Proportional to 4,993.78, 7,486.92 and 3,019

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Solution

The fourth proportional to 4,993.78, 7,486.92 and 3,019 is: 4,526.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.78 : 7,486.92 = 3,019 : x
  2. Step 2: Convert to fraction form
    4,993.78/7,486.92 = 3,019/x
  3. Step 3: Cross multiply
    4,993.78x = 7,486.92 × 3,019
  4. Step 4: Simplify right side
    4,993.78x = 22,603,011.48
  5. Step 5: Solve for x
    x = 22,603,011.48/4,993.78
  6. Step 6: Final answer
    x = 4,526.23

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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.