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Finding the Third Proportional to 19,990 and 43,058

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Solution

The third proportional to 19,990 and 43,058 is: 92,745.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990 : 43,058 = 43,058 : x
  2. Step 2: Convert to fraction form
    19,990/43,058 = 43,058/x
  3. Step 3: Cross multiply
    19,990x = 43,058 × 43,058
  4. Step 4: Simplify right side
    19,990x = 1,853,991,364
  5. Step 5: Solve for x
    x = 1,853,991,364/19,990
  6. Step 6: Final answer
    x = 92,745.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.