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Finding the Third Proportional to 35,690 and 77,736

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Solution

The third proportional to 35,690 and 77,736 is: 169,315.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,690 : 77,736 = 77,736 : x
  2. Step 2: Convert to fraction form
    35,690/77,736 = 77,736/x
  3. Step 3: Cross multiply
    35,690x = 77,736 × 77,736
  4. Step 4: Simplify right side
    35,690x = 6,042,885,696
  5. Step 5: Solve for x
    x = 6,042,885,696/35,690
  6. Step 6: Final answer
    x = 169,315.93

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.