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Finding the Third Proportional to 56,736 and 121,896

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Solution

The third proportional to 56,736 and 121,896 is: 261,890.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,736 : 121,896 = 121,896 : x
  2. Step 2: Convert to fraction form
    56,736/121,896 = 121,896/x
  3. Step 3: Cross multiply
    56,736x = 121,896 × 121,896
  4. Step 4: Simplify right side
    56,736x = 14,858,634,816
  5. Step 5: Solve for x
    x = 14,858,634,816/56,736
  6. Step 6: Final answer
    x = 261,890.77

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.