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Finding the Third Proportional to 4,245 and 5,719

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Solution

The third proportional to 4,245 and 5,719 is: 7,704.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245 : 5,719 = 5,719 : x
  2. Step 2: Convert to fraction form
    4,245/5,719 = 5,719/x
  3. Step 3: Cross multiply
    4,245x = 5,719 × 5,719
  4. Step 4: Simplify right side
    4,245x = 32,706,961
  5. Step 5: Solve for x
    x = 32,706,961/4,245
  6. Step 6: Final answer
    x = 7,704.82

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.