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Finding the Third Proportional to 56,816 and 84,125

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Solution

The third proportional to 56,816 and 84,125 is: 124,560.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,816 : 84,125 = 84,125 : x
  2. Step 2: Convert to fraction form
    56,816/84,125 = 84,125/x
  3. Step 3: Cross multiply
    56,816x = 84,125 × 84,125
  4. Step 4: Simplify right side
    56,816x = 7,077,015,625
  5. Step 5: Solve for x
    x = 7,077,015,625/56,816
  6. Step 6: Final answer
    x = 124,560.26

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.