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Finding the Third Proportional to 15,997 and 34,905.50

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Solution

The third proportional to 15,997 and 34,905.50 is: 76,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,997 : 34,905.50 = 34,905.50 : x
  2. Step 2: Convert to fraction form
    15,997/34,905.50 = 34,905.50/x
  3. Step 3: Cross multiply
    15,997x = 34,905.50 × 34,905.50
  4. Step 4: Simplify right side
    15,997x = 1,218,393,930.25
  5. Step 5: Solve for x
    x = 1,218,393,930.25/15,997
  6. Step 6: Final answer
    x = 76,163.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.