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Finding the Third Proportional to 535.50 and 939

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Solution

The third proportional to 535.50 and 939 is: 1,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.50 : 939 = 939 : x
  2. Step 2: Convert to fraction form
    535.50/939 = 939/x
  3. Step 3: Cross multiply
    535.50x = 939 × 939
  4. Step 4: Simplify right side
    535.50x = 881,721
  5. Step 5: Solve for x
    x = 881,721/535.50
  6. Step 6: Final answer
    x = 1,646.54

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Why These Related Problems?

These problems maintain the same ratio (1.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.