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Finding the Third Proportional to 3,391.56 and 9,115.35

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Solution

The third proportional to 3,391.56 and 9,115.35 is: 24,498.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.56 : 9,115.35 = 9,115.35 : x
  2. Step 2: Convert to fraction form
    3,391.56/9,115.35 = 9,115.35/x
  3. Step 3: Cross multiply
    3,391.56x = 9,115.35 × 9,115.35
  4. Step 4: Simplify right side
    3,391.56x = 83,089,562.89
  5. Step 5: Solve for x
    x = 83,089,562.89/3,391.56
  6. Step 6: Final answer
    x = 24,498.93

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Why These Related Problems?

These problems maintain the same ratio (2.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.