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Finding the Third Proportional to 4,700.25 and 6,879.38

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Solution

The third proportional to 4,700.25 and 6,879.38 is: 10,068.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,700.25 : 6,879.38 = 6,879.38 : x
  2. Step 2: Convert to fraction form
    4,700.25/6,879.38 = 6,879.38/x
  3. Step 3: Cross multiply
    4,700.25x = 6,879.38 × 6,879.38
  4. Step 4: Simplify right side
    4,700.25x = 47,325,800.39
  5. Step 5: Solve for x
    x = 47,325,800.39/4,700.25
  6. Step 6: Final answer
    x = 10,068.78

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.