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Finding the Third Proportional to 2,919 and 4,381.25

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Solution

The third proportional to 2,919 and 4,381.25 is: 6,576.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919 : 4,381.25 = 4,381.25 : x
  2. Step 2: Convert to fraction form
    2,919/4,381.25 = 4,381.25/x
  3. Step 3: Cross multiply
    2,919x = 4,381.25 × 4,381.25
  4. Step 4: Simplify right side
    2,919x = 19,195,351.56
  5. Step 5: Solve for x
    x = 19,195,351.56/2,919
  6. Step 6: Final answer
    x = 6,576.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.