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Finding the Third Proportional to 9,912.38 and 15,936.75

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Solution

The third proportional to 9,912.38 and 15,936.75 is: 25,622.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.38 : 15,936.75 = 15,936.75 : x
  2. Step 2: Convert to fraction form
    9,912.38/15,936.75 = 15,936.75/x
  3. Step 3: Cross multiply
    9,912.38x = 15,936.75 × 15,936.75
  4. Step 4: Simplify right side
    9,912.38x = 253,980,000.56
  5. Step 5: Solve for x
    x = 253,980,000.56/9,912.38
  6. Step 6: Final answer
    x = 25,622.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.