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Finding the Third Proportional to 5,258 and 8,039

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Solution

The third proportional to 5,258 and 8,039 is: 12,290.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,258 : 8,039 = 8,039 : x
  2. Step 2: Convert to fraction form
    5,258/8,039 = 8,039/x
  3. Step 3: Cross multiply
    5,258x = 8,039 × 8,039
  4. Step 4: Simplify right side
    5,258x = 64,625,521
  5. Step 5: Solve for x
    x = 64,625,521/5,258
  6. Step 6: Final answer
    x = 12,290.89

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.