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Finding the Third Proportional to 4,821 and 5,829

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Solution

The third proportional to 4,821 and 5,829 is: 7,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821 : 5,829 = 5,829 : x
  2. Step 2: Convert to fraction form
    4,821/5,829 = 5,829/x
  3. Step 3: Cross multiply
    4,821x = 5,829 × 5,829
  4. Step 4: Simplify right side
    4,821x = 33,977,241
  5. Step 5: Solve for x
    x = 33,977,241/4,821
  6. Step 6: Final answer
    x = 7,047.76

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.