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Finding the Third Proportional to 14,728 and 22,153

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Solution

The third proportional to 14,728 and 22,153 is: 33,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,728 : 22,153 = 22,153 : x
  2. Step 2: Convert to fraction form
    14,728/22,153 = 22,153/x
  3. Step 3: Cross multiply
    14,728x = 22,153 × 22,153
  4. Step 4: Simplify right side
    14,728x = 490,755,409
  5. Step 5: Solve for x
    x = 490,755,409/14,728
  6. Step 6: Final answer
    x = 33,321.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.