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Finding the Third Proportional to 39,922 and 66,534

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Solution

The third proportional to 39,922 and 66,534 is: 110,885.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,922 : 66,534 = 66,534 : x
  2. Step 2: Convert to fraction form
    39,922/66,534 = 66,534/x
  3. Step 3: Cross multiply
    39,922x = 66,534 × 66,534
  4. Step 4: Simplify right side
    39,922x = 4,426,773,156
  5. Step 5: Solve for x
    x = 4,426,773,156/39,922
  6. Step 6: Final answer
    x = 110,885.56

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.