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Finding the Third Proportional to 64,026 and 90,126

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Solution

The third proportional to 64,026 and 90,126 is: 126,865.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,026 : 90,126 = 90,126 : x
  2. Step 2: Convert to fraction form
    64,026/90,126 = 90,126/x
  3. Step 3: Cross multiply
    64,026x = 90,126 × 90,126
  4. Step 4: Simplify right side
    64,026x = 8,122,695,876
  5. Step 5: Solve for x
    x = 8,122,695,876/64,026
  6. Step 6: Final answer
    x = 126,865.58

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.