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Finding the Third Proportional to 3,582 and 5,279

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Solution

The third proportional to 3,582 and 5,279 is: 7,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,582 : 5,279 = 5,279 : x
  2. Step 2: Convert to fraction form
    3,582/5,279 = 5,279/x
  3. Step 3: Cross multiply
    3,582x = 5,279 × 5,279
  4. Step 4: Simplify right side
    3,582x = 27,867,841
  5. Step 5: Solve for x
    x = 27,867,841/3,582
  6. Step 6: Final answer
    x = 7,779.97

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.