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Finding the Third Proportional to 45,446 and 66,641

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Solution

The third proportional to 45,446 and 66,641 is: 97,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,446 : 66,641 = 66,641 : x
  2. Step 2: Convert to fraction form
    45,446/66,641 = 66,641/x
  3. Step 3: Cross multiply
    45,446x = 66,641 × 66,641
  4. Step 4: Simplify right side
    45,446x = 4,441,022,881
  5. Step 5: Solve for x
    x = 4,441,022,881/45,446
  6. Step 6: Final answer
    x = 97,720.87

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.