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Finding the Third Proportional to 10,224 and 14,720

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Solution

The third proportional to 10,224 and 14,720 is: 21,193.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,224 : 14,720 = 14,720 : x
  2. Step 2: Convert to fraction form
    10,224/14,720 = 14,720/x
  3. Step 3: Cross multiply
    10,224x = 14,720 × 14,720
  4. Step 4: Simplify right side
    10,224x = 216,678,400
  5. Step 5: Solve for x
    x = 216,678,400/10,224
  6. Step 6: Final answer
    x = 21,193.11

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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.