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Finding the Third Proportional to 1,086.19 and 1,625.06

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Solution

The third proportional to 1,086.19 and 1,625.06 is: 2,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086.19 : 1,625.06 = 1,625.06 : x
  2. Step 2: Convert to fraction form
    1,086.19/1,625.06 = 1,625.06/x
  3. Step 3: Cross multiply
    1,086.19x = 1,625.06 × 1,625.06
  4. Step 4: Simplify right side
    1,086.19x = 2,640,828.13
  5. Step 5: Solve for x
    x = 2,640,828.13/1,086.19
  6. Step 6: Final answer
    x = 2,431.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.