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Finding the Third Proportional to 32,288 and 66,640

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Solution

The third proportional to 32,288 and 66,640 is: 137,539.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,288 : 66,640 = 66,640 : x
  2. Step 2: Convert to fraction form
    32,288/66,640 = 66,640/x
  3. Step 3: Cross multiply
    32,288x = 66,640 × 66,640
  4. Step 4: Simplify right side
    32,288x = 4,440,889,600
  5. Step 5: Solve for x
    x = 4,440,889,600/32,288
  6. Step 6: Final answer
    x = 137,539.94

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.