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Finding the Third Proportional to 995.50 and 2,015

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Solution

The third proportional to 995.50 and 2,015 is: 4,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.50 : 2,015 = 2,015 : x
  2. Step 2: Convert to fraction form
    995.50/2,015 = 2,015/x
  3. Step 3: Cross multiply
    995.50x = 2,015 × 2,015
  4. Step 4: Simplify right side
    995.50x = 4,060,225
  5. Step 5: Solve for x
    x = 4,060,225/995.50
  6. Step 6: Final answer
    x = 4,078.58

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.