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Finding the Third Proportional to 4,267.63 and 8,740.38

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Solution

The third proportional to 4,267.63 and 8,740.38 is: 17,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,267.63 : 8,740.38 = 8,740.38 : x
  2. Step 2: Convert to fraction form
    4,267.63/8,740.38 = 8,740.38/x
  3. Step 3: Cross multiply
    4,267.63x = 8,740.38 × 8,740.38
  4. Step 4: Simplify right side
    4,267.63x = 76,394,155.14
  5. Step 5: Solve for x
    x = 76,394,155.14/4,267.63
  6. Step 6: Final answer
    x = 17,900.86

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.