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Finding the Third Proportional to 35,812 and 77,968

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Solution

The third proportional to 35,812 and 77,968 is: 169,747.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,812 : 77,968 = 77,968 : x
  2. Step 2: Convert to fraction form
    35,812/77,968 = 77,968/x
  3. Step 3: Cross multiply
    35,812x = 77,968 × 77,968
  4. Step 4: Simplify right side
    35,812x = 6,079,009,024
  5. Step 5: Solve for x
    x = 6,079,009,024/35,812
  6. Step 6: Final answer
    x = 169,747.82

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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.