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Finding the Third Proportional to 1,571 and 1,705

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Solution

The third proportional to 1,571 and 1,705 is: 1,850.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571 : 1,705 = 1,705 : x
  2. Step 2: Convert to fraction form
    1,571/1,705 = 1,705/x
  3. Step 3: Cross multiply
    1,571x = 1,705 × 1,705
  4. Step 4: Simplify right side
    1,571x = 2,907,025
  5. Step 5: Solve for x
    x = 2,907,025/1,571
  6. Step 6: Final answer
    x = 1,850.43

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.