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Finding the Third Proportional to 1,633 and 3,518

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Solution

The third proportional to 1,633 and 3,518 is: 7,578.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633 : 3,518 = 3,518 : x
  2. Step 2: Convert to fraction form
    1,633/3,518 = 3,518/x
  3. Step 3: Cross multiply
    1,633x = 3,518 × 3,518
  4. Step 4: Simplify right side
    1,633x = 12,376,324
  5. Step 5: Solve for x
    x = 12,376,324/1,633
  6. Step 6: Final answer
    x = 7,578.89

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.