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Finding the Third Proportional to 1,054.88 and 1,449.19

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Solution

The third proportional to 1,054.88 and 1,449.19 is: 1,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.88 : 1,449.19 = 1,449.19 : x
  2. Step 2: Convert to fraction form
    1,054.88/1,449.19 = 1,449.19/x
  3. Step 3: Cross multiply
    1,054.88x = 1,449.19 × 1,449.19
  4. Step 4: Simplify right side
    1,054.88x = 2,100,144.41
  5. Step 5: Solve for x
    x = 2,100,144.41/1,054.88
  6. Step 6: Final answer
    x = 1,990.89

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.