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Finding the Third Proportional to 4,206 and 8,925

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Solution

The third proportional to 4,206 and 8,925 is: 18,938.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,206 : 8,925 = 8,925 : x
  2. Step 2: Convert to fraction form
    4,206/8,925 = 8,925/x
  3. Step 3: Cross multiply
    4,206x = 8,925 × 8,925
  4. Step 4: Simplify right side
    4,206x = 79,655,625
  5. Step 5: Solve for x
    x = 79,655,625/4,206
  6. Step 6: Final answer
    x = 18,938.57

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.