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Finding the Third Proportional to 34,170 and 74,356

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Solution

The third proportional to 34,170 and 74,356 is: 161,803.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,170 : 74,356 = 74,356 : x
  2. Step 2: Convert to fraction form
    34,170/74,356 = 74,356/x
  3. Step 3: Cross multiply
    34,170x = 74,356 × 74,356
  4. Step 4: Simplify right side
    34,170x = 5,528,814,736
  5. Step 5: Solve for x
    x = 5,528,814,736/34,170
  6. Step 6: Final answer
    x = 161,803.18

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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.