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Finding the Third Proportional to 10,330.75 and 21,206

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Solution

The third proportional to 10,330.75 and 21,206 is: 43,529.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.75 : 21,206 = 21,206 : x
  2. Step 2: Convert to fraction form
    10,330.75/21,206 = 21,206/x
  3. Step 3: Cross multiply
    10,330.75x = 21,206 × 21,206
  4. Step 4: Simplify right side
    10,330.75x = 449,694,436
  5. Step 5: Solve for x
    x = 449,694,436/10,330.75
  6. Step 6: Final answer
    x = 43,529.70

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.