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Finding the Third Proportional to 279 and 702.50

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Solution

The third proportional to 279 and 702.50 is: 1,768.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    279 : 702.50 = 702.50 : x
  2. Step 2: Convert to fraction form
    279/702.50 = 702.50/x
  3. Step 3: Cross multiply
    279x = 702.50 × 702.50
  4. Step 4: Simplify right side
    279x = 493,506.25
  5. Step 5: Solve for x
    x = 493,506.25/279
  6. Step 6: Final answer
    x = 1,768.84

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These problems maintain the same ratio (2.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.