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Finding the Third Proportional to 12,639 and 26,088

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Solution

The third proportional to 12,639 and 26,088 is: 53,847.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639 : 26,088 = 26,088 : x
  2. Step 2: Convert to fraction form
    12,639/26,088 = 26,088/x
  3. Step 3: Cross multiply
    12,639x = 26,088 × 26,088
  4. Step 4: Simplify right side
    12,639x = 680,583,744
  5. Step 5: Solve for x
    x = 680,583,744/12,639
  6. Step 6: Final answer
    x = 53,847.91

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.