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Finding the Third Proportional to 234.75 and 568.50

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Solution

The third proportional to 234.75 and 568.50 is: 1,376.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.75 : 568.50 = 568.50 : x
  2. Step 2: Convert to fraction form
    234.75/568.50 = 568.50/x
  3. Step 3: Cross multiply
    234.75x = 568.50 × 568.50
  4. Step 4: Simplify right side
    234.75x = 323,192.25
  5. Step 5: Solve for x
    x = 323,192.25/234.75
  6. Step 6: Final answer
    x = 1,376.75

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.