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Finding the Third Proportional to 25,979 and 39,379

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Solution

The third proportional to 25,979 and 39,379 is: 59,690.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,979 : 39,379 = 39,379 : x
  2. Step 2: Convert to fraction form
    25,979/39,379 = 39,379/x
  3. Step 3: Cross multiply
    25,979x = 39,379 × 39,379
  4. Step 4: Simplify right side
    25,979x = 1,550,705,641
  5. Step 5: Solve for x
    x = 1,550,705,641/25,979
  6. Step 6: Final answer
    x = 59,690.74

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.