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Finding the Third Proportional to 1,663.88 and 2,586.09

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Solution

The third proportional to 1,663.88 and 2,586.09 is: 4,019.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663.88 : 2,586.09 = 2,586.09 : x
  2. Step 2: Convert to fraction form
    1,663.88/2,586.09 = 2,586.09/x
  3. Step 3: Cross multiply
    1,663.88x = 2,586.09 × 2,586.09
  4. Step 4: Simplify right side
    1,663.88x = 6,687,880.88
  5. Step 5: Solve for x
    x = 6,687,880.88/1,663.88
  6. Step 6: Final answer
    x = 4,019.46

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.