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Finding the Third Proportional to 2,805.89 and 4,208.84

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Solution

The third proportional to 2,805.89 and 4,208.84 is: 6,313.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.89 : 4,208.84 = 4,208.84 : x
  2. Step 2: Convert to fraction form
    2,805.89/4,208.84 = 4,208.84/x
  3. Step 3: Cross multiply
    2,805.89x = 4,208.84 × 4,208.84
  4. Step 4: Simplify right side
    2,805.89x = 17,714,299.95
  5. Step 5: Solve for x
    x = 17,714,299.95/2,805.89
  6. Step 6: Final answer
    x = 6,313.25

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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.