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Finding the Third Proportional to 2,928.75 and 6,147.75

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Solution

The third proportional to 2,928.75 and 6,147.75 is: 12,904.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.75 : 6,147.75 = 6,147.75 : x
  2. Step 2: Convert to fraction form
    2,928.75/6,147.75 = 6,147.75/x
  3. Step 3: Cross multiply
    2,928.75x = 6,147.75 × 6,147.75
  4. Step 4: Simplify right side
    2,928.75x = 37,794,830.06
  5. Step 5: Solve for x
    x = 37,794,830.06/2,928.75
  6. Step 6: Final answer
    x = 12,904.76

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.