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Finding the Third Proportional to 5,419.75 and 8,083.75

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Solution

The third proportional to 5,419.75 and 8,083.75 is: 12,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.75 : 8,083.75 = 8,083.75 : x
  2. Step 2: Convert to fraction form
    5,419.75/8,083.75 = 8,083.75/x
  3. Step 3: Cross multiply
    5,419.75x = 8,083.75 × 8,083.75
  4. Step 4: Simplify right side
    5,419.75x = 65,347,014.06
  5. Step 5: Solve for x
    x = 65,347,014.06/5,419.75
  6. Step 6: Final answer
    x = 12,057.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.