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Finding the Third Proportional to 12,355 and 26,649

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Solution

The third proportional to 12,355 and 26,649 is: 57,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355 : 26,649 = 26,649 : x
  2. Step 2: Convert to fraction form
    12,355/26,649 = 26,649/x
  3. Step 3: Cross multiply
    12,355x = 26,649 × 26,649
  4. Step 4: Simplify right side
    12,355x = 710,169,201
  5. Step 5: Solve for x
    x = 710,169,201/12,355
  6. Step 6: Final answer
    x = 57,480.31

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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.