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Finding the Third Proportional to 3,085.44 and 4,786.63

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Solution

The third proportional to 3,085.44 and 4,786.63 is: 7,425.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.44 : 4,786.63 = 4,786.63 : x
  2. Step 2: Convert to fraction form
    3,085.44/4,786.63 = 4,786.63/x
  3. Step 3: Cross multiply
    3,085.44x = 4,786.63 × 4,786.63
  4. Step 4: Simplify right side
    3,085.44x = 22,911,778.89
  5. Step 5: Solve for x
    x = 22,911,778.89/3,085.44
  6. Step 6: Final answer
    x = 7,425.78

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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.