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Finding the Third Proportional to 3,195.07 and 6,978.66

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Solution

The third proportional to 3,195.07 and 6,978.66 is: 15,242.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.07 : 6,978.66 = 6,978.66 : x
  2. Step 2: Convert to fraction form
    3,195.07/6,978.66 = 6,978.66/x
  3. Step 3: Cross multiply
    3,195.07x = 6,978.66 × 6,978.66
  4. Step 4: Simplify right side
    3,195.07x = 48,701,643.06
  5. Step 5: Solve for x
    x = 48,701,643.06/3,195.07
  6. Step 6: Final answer
    x = 15,242.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.