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Finding the Third Proportional to 5,442 and 8,039

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Solution

The third proportional to 5,442 and 8,039 is: 11,875.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,442 : 8,039 = 8,039 : x
  2. Step 2: Convert to fraction form
    5,442/8,039 = 8,039/x
  3. Step 3: Cross multiply
    5,442x = 8,039 × 8,039
  4. Step 4: Simplify right side
    5,442x = 64,625,521
  5. Step 5: Solve for x
    x = 64,625,521/5,442
  6. Step 6: Final answer
    x = 11,875.33

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.