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Finding the Third Proportional to 57,271 and 87,608

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Solution

The third proportional to 57,271 and 87,608 is: 134,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,271 : 87,608 = 87,608 : x
  2. Step 2: Convert to fraction form
    57,271/87,608 = 87,608/x
  3. Step 3: Cross multiply
    57,271x = 87,608 × 87,608
  4. Step 4: Simplify right side
    57,271x = 7,675,161,664
  5. Step 5: Solve for x
    x = 7,675,161,664/57,271
  6. Step 6: Final answer
    x = 134,014.80

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.