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Finding the Third Proportional to 4,429 and 5,821

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Solution

The third proportional to 4,429 and 5,821 is: 7,650.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429 : 5,821 = 5,821 : x
  2. Step 2: Convert to fraction form
    4,429/5,821 = 5,821/x
  3. Step 3: Cross multiply
    4,429x = 5,821 × 5,821
  4. Step 4: Simplify right side
    4,429x = 33,884,041
  5. Step 5: Solve for x
    x = 33,884,041/4,429
  6. Step 6: Final answer
    x = 7,650.49

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.