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Finding the Third Proportional to 7,815.50 and 11,195

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Solution

The third proportional to 7,815.50 and 11,195 is: 16,035.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.50 : 11,195 = 11,195 : x
  2. Step 2: Convert to fraction form
    7,815.50/11,195 = 11,195/x
  3. Step 3: Cross multiply
    7,815.50x = 11,195 × 11,195
  4. Step 4: Simplify right side
    7,815.50x = 125,328,025
  5. Step 5: Solve for x
    x = 125,328,025/7,815.50
  6. Step 6: Final answer
    x = 16,035.83

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.