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Finding the Third Proportional to 12,278 and 26,518

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Solution

The third proportional to 12,278 and 26,518 is: 57,273.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278 : 26,518 = 26,518 : x
  2. Step 2: Convert to fraction form
    12,278/26,518 = 26,518/x
  3. Step 3: Cross multiply
    12,278x = 26,518 × 26,518
  4. Step 4: Simplify right side
    12,278x = 703,204,324
  5. Step 5: Solve for x
    x = 703,204,324/12,278
  6. Step 6: Final answer
    x = 57,273.52

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.