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Finding the Third Proportional to 6,967.69 and 11,913.75

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Solution

The third proportional to 6,967.69 and 11,913.75 is: 20,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,967.69 : 11,913.75 = 11,913.75 : x
  2. Step 2: Convert to fraction form
    6,967.69/11,913.75 = 11,913.75/x
  3. Step 3: Cross multiply
    6,967.69x = 11,913.75 × 11,913.75
  4. Step 4: Simplify right side
    6,967.69x = 141,937,439.06
  5. Step 5: Solve for x
    x = 141,937,439.06/6,967.69
  6. Step 6: Final answer
    x = 20,370.81

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Why These Related Problems?

These problems maintain the same ratio (1.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.