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Finding the Third Proportional to 2,912 and 4,611

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Solution

The third proportional to 2,912 and 4,611 is: 7,301.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912 : 4,611 = 4,611 : x
  2. Step 2: Convert to fraction form
    2,912/4,611 = 4,611/x
  3. Step 3: Cross multiply
    2,912x = 4,611 × 4,611
  4. Step 4: Simplify right side
    2,912x = 21,261,321
  5. Step 5: Solve for x
    x = 21,261,321/2,912
  6. Step 6: Final answer
    x = 7,301.28

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.