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Finding the Third Proportional to 2,078.25 and 3,125.81

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Solution

The third proportional to 2,078.25 and 3,125.81 is: 4,701.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.25 : 3,125.81 = 3,125.81 : x
  2. Step 2: Convert to fraction form
    2,078.25/3,125.81 = 3,125.81/x
  3. Step 3: Cross multiply
    2,078.25x = 3,125.81 × 3,125.81
  4. Step 4: Simplify right side
    2,078.25x = 9,770,703.79
  5. Step 5: Solve for x
    x = 9,770,703.79/2,078.25
  6. Step 6: Final answer
    x = 4,701.41

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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.