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Finding the Third Proportional to 1,717 and 3,777.50

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Solution

The third proportional to 1,717 and 3,777.50 is: 8,310.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717 : 3,777.50 = 3,777.50 : x
  2. Step 2: Convert to fraction form
    1,717/3,777.50 = 3,777.50/x
  3. Step 3: Cross multiply
    1,717x = 3,777.50 × 3,777.50
  4. Step 4: Simplify right side
    1,717x = 14,269,506.25
  5. Step 5: Solve for x
    x = 14,269,506.25/1,717
  6. Step 6: Final answer
    x = 8,310.72

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.