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Finding the Third Proportional to 152.86 and 327.80

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Solution

The third proportional to 152.86 and 327.80 is: 702.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.86 : 327.80 = 327.80 : x
  2. Step 2: Convert to fraction form
    152.86/327.80 = 327.80/x
  3. Step 3: Cross multiply
    152.86x = 327.80 × 327.80
  4. Step 4: Simplify right side
    152.86x = 107,450.79
  5. Step 5: Solve for x
    x = 107,450.79/152.86
  6. Step 6: Final answer
    x = 702.94

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.