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Finding the Third Proportional to 9,942.75 and 20,579.06

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Solution

The third proportional to 9,942.75 and 20,579.06 is: 42,593.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,942.75 : 20,579.06 = 20,579.06 : x
  2. Step 2: Convert to fraction form
    9,942.75/20,579.06 = 20,579.06/x
  3. Step 3: Cross multiply
    9,942.75x = 20,579.06 × 20,579.06
  4. Step 4: Simplify right side
    9,942.75x = 423,497,813.38
  5. Step 5: Solve for x
    x = 423,497,813.38/9,942.75
  6. Step 6: Final answer
    x = 42,593.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.