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Finding the Third Proportional to 783.50 and 1,519

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Solution

The third proportional to 783.50 and 1,519 is: 2,944.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    783.50 : 1,519 = 1,519 : x
  2. Step 2: Convert to fraction form
    783.50/1,519 = 1,519/x
  3. Step 3: Cross multiply
    783.50x = 1,519 × 1,519
  4. Step 4: Simplify right side
    783.50x = 2,307,361
  5. Step 5: Solve for x
    x = 2,307,361/783.50
  6. Step 6: Final answer
    x = 2,944.94

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Why These Related Problems?

These problems maintain the same ratio (1.94) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.