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Finding the Third Proportional to 12,993 and 20,925

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Solution

The third proportional to 12,993 and 20,925 is: 33,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993 : 20,925 = 20,925 : x
  2. Step 2: Convert to fraction form
    12,993/20,925 = 20,925/x
  3. Step 3: Cross multiply
    12,993x = 20,925 × 20,925
  4. Step 4: Simplify right side
    12,993x = 437,855,625
  5. Step 5: Solve for x
    x = 437,855,625/12,993
  6. Step 6: Final answer
    x = 33,699.35

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.