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Finding the Third Proportional to 1,086.19 and 1,608.19

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Solution

The third proportional to 1,086.19 and 1,608.19 is: 2,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.19 : 1,608.19 = 1,608.19 : x
  2. Step 2: Convert to fraction form
    1,086.19/1,608.19 = 1,608.19/x
  3. Step 3: Cross multiply
    1,086.19x = 1,608.19 × 1,608.19
  4. Step 4: Simplify right side
    1,086.19x = 2,586,267.04
  5. Step 5: Solve for x
    x = 2,586,267.04/1,086.19
  6. Step 6: Final answer
    x = 2,381.05

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.