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Finding the Third Proportional to 55,236 and 86,408.25

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Solution

The third proportional to 55,236 and 86,408.25 is: 135,172.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,236 : 86,408.25 = 86,408.25 : x
  2. Step 2: Convert to fraction form
    55,236/86,408.25 = 86,408.25/x
  3. Step 3: Cross multiply
    55,236x = 86,408.25 × 86,408.25
  4. Step 4: Simplify right side
    55,236x = 7,466,385,668.06
  5. Step 5: Solve for x
    x = 7,466,385,668.06/55,236
  6. Step 6: Final answer
    x = 135,172.45

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.