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Finding the Third Proportional to 1,664.50 and 2,611

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Solution

The third proportional to 1,664.50 and 2,611 is: 4,095.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.50 : 2,611 = 2,611 : x
  2. Step 2: Convert to fraction form
    1,664.50/2,611 = 2,611/x
  3. Step 3: Cross multiply
    1,664.50x = 2,611 × 2,611
  4. Step 4: Simplify right side
    1,664.50x = 6,817,321
  5. Step 5: Solve for x
    x = 6,817,321/1,664.50
  6. Step 6: Final answer
    x = 4,095.72

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.