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Finding the Third Proportional to 5,103 and 7,648.80

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Solution

The third proportional to 5,103 and 7,648.80 is: 11,464.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103 : 7,648.80 = 7,648.80 : x
  2. Step 2: Convert to fraction form
    5,103/7,648.80 = 7,648.80/x
  3. Step 3: Cross multiply
    5,103x = 7,648.80 × 7,648.80
  4. Step 4: Simplify right side
    5,103x = 58,504,213.15
  5. Step 5: Solve for x
    x = 58,504,213.15/5,103
  6. Step 6: Final answer
    x = 11,464.67

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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.