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Finding the Third Proportional to 663.50 and 975

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Solution

The third proportional to 663.50 and 975 is: 1,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    663.50 : 975 = 975 : x
  2. Step 2: Convert to fraction form
    663.50/975 = 975/x
  3. Step 3: Cross multiply
    663.50x = 975 × 975
  4. Step 4: Simplify right side
    663.50x = 950,625
  5. Step 5: Solve for x
    x = 950,625/663.50
  6. Step 6: Final answer
    x = 1,432.74

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.