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Finding the Third Proportional to 14,769 and 20,412

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Solution

The third proportional to 14,769 and 20,412 is: 28,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,769 : 20,412 = 20,412 : x
  2. Step 2: Convert to fraction form
    14,769/20,412 = 20,412/x
  3. Step 3: Cross multiply
    14,769x = 20,412 × 20,412
  4. Step 4: Simplify right side
    14,769x = 416,649,744
  5. Step 5: Solve for x
    x = 416,649,744/14,769
  6. Step 6: Final answer
    x = 28,211.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.