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Finding the Third Proportional to 55,082 and 87,544

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Solution

The third proportional to 55,082 and 87,544 is: 139,137.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,082 : 87,544 = 87,544 : x
  2. Step 2: Convert to fraction form
    55,082/87,544 = 87,544/x
  3. Step 3: Cross multiply
    55,082x = 87,544 × 87,544
  4. Step 4: Simplify right side
    55,082x = 7,663,951,936
  5. Step 5: Solve for x
    x = 7,663,951,936/55,082
  6. Step 6: Final answer
    x = 139,137.14

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.