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Finding the Third Proportional to 14,515 and 20,935

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Solution

The third proportional to 14,515 and 20,935 is: 30,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515 : 20,935 = 20,935 : x
  2. Step 2: Convert to fraction form
    14,515/20,935 = 20,935/x
  3. Step 3: Cross multiply
    14,515x = 20,935 × 20,935
  4. Step 4: Simplify right side
    14,515x = 438,274,225
  5. Step 5: Solve for x
    x = 438,274,225/14,515
  6. Step 6: Final answer
    x = 30,194.57

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.