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Finding the Third Proportional to 915.50 and 1,741

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Solution

The third proportional to 915.50 and 1,741 is: 3,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    915.50 : 1,741 = 1,741 : x
  2. Step 2: Convert to fraction form
    915.50/1,741 = 1,741/x
  3. Step 3: Cross multiply
    915.50x = 1,741 × 1,741
  4. Step 4: Simplify right side
    915.50x = 3,031,081
  5. Step 5: Solve for x
    x = 3,031,081/915.50
  6. Step 6: Final answer
    x = 3,310.85

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.