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Finding the Third Proportional to 2,078.75 and 2,725.25

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Solution

The third proportional to 2,078.75 and 2,725.25 is: 3,572.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.75 : 2,725.25 = 2,725.25 : x
  2. Step 2: Convert to fraction form
    2,078.75/2,725.25 = 2,725.25/x
  3. Step 3: Cross multiply
    2,078.75x = 2,725.25 × 2,725.25
  4. Step 4: Simplify right side
    2,078.75x = 7,426,987.56
  5. Step 5: Solve for x
    x = 7,426,987.56/2,078.75
  6. Step 6: Final answer
    x = 3,572.81

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.