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Finding the Third Proportional to 6,778.69 and 14,478.75

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Solution

The third proportional to 6,778.69 and 14,478.75 is: 30,925.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,778.69 : 14,478.75 = 14,478.75 : x
  2. Step 2: Convert to fraction form
    6,778.69/14,478.75 = 14,478.75/x
  3. Step 3: Cross multiply
    6,778.69x = 14,478.75 × 14,478.75
  4. Step 4: Simplify right side
    6,778.69x = 209,634,201.56
  5. Step 5: Solve for x
    x = 209,634,201.56/6,778.69
  6. Step 6: Final answer
    x = 30,925.49

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.