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Finding the Third Proportional to 4,912 and 7,606

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Solution

The third proportional to 4,912 and 7,606 is: 11,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912 : 7,606 = 7,606 : x
  2. Step 2: Convert to fraction form
    4,912/7,606 = 7,606/x
  3. Step 3: Cross multiply
    4,912x = 7,606 × 7,606
  4. Step 4: Simplify right side
    4,912x = 57,851,236
  5. Step 5: Solve for x
    x = 57,851,236/4,912
  6. Step 6: Final answer
    x = 11,777.53

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.