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Finding the Third Proportional to 9,728 and 14,247

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Solution

The third proportional to 9,728 and 14,247 is: 20,865.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,728 : 14,247 = 14,247 : x
  2. Step 2: Convert to fraction form
    9,728/14,247 = 14,247/x
  3. Step 3: Cross multiply
    9,728x = 14,247 × 14,247
  4. Step 4: Simplify right side
    9,728x = 202,977,009
  5. Step 5: Solve for x
    x = 202,977,009/9,728
  6. Step 6: Final answer
    x = 20,865.24

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.