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Finding the Third Proportional to 83,986 and 130,036

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Solution

The third proportional to 83,986 and 130,036 is: 201,335.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,986 : 130,036 = 130,036 : x
  2. Step 2: Convert to fraction form
    83,986/130,036 = 130,036/x
  3. Step 3: Cross multiply
    83,986x = 130,036 × 130,036
  4. Step 4: Simplify right side
    83,986x = 16,909,361,296
  5. Step 5: Solve for x
    x = 16,909,361,296/83,986
  6. Step 6: Final answer
    x = 201,335.48

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.