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Finding the Third Proportional to 4,993.31 and 7,515.28

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Solution

The third proportional to 4,993.31 and 7,515.28 is: 11,311.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.31 : 7,515.28 = 7,515.28 : x
  2. Step 2: Convert to fraction form
    4,993.31/7,515.28 = 7,515.28/x
  3. Step 3: Cross multiply
    4,993.31x = 7,515.28 × 7,515.28
  4. Step 4: Simplify right side
    4,993.31x = 56,479,452.27
  5. Step 5: Solve for x
    x = 56,479,452.27/4,993.31
  6. Step 6: Final answer
    x = 11,311.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.