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Finding the Third Proportional to 568.75 and 1,374.50

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Solution

The third proportional to 568.75 and 1,374.50 is: 3,321.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.75 : 1,374.50 = 1,374.50 : x
  2. Step 2: Convert to fraction form
    568.75/1,374.50 = 1,374.50/x
  3. Step 3: Cross multiply
    568.75x = 1,374.50 × 1,374.50
  4. Step 4: Simplify right side
    568.75x = 1,889,250.25
  5. Step 5: Solve for x
    x = 1,889,250.25/568.75
  6. Step 6: Final answer
    x = 3,321.76

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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.