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Finding the Third Proportional to 1,644 and 2,518

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Solution

The third proportional to 1,644 and 2,518 is: 3,856.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644 : 2,518 = 2,518 : x
  2. Step 2: Convert to fraction form
    1,644/2,518 = 2,518/x
  3. Step 3: Cross multiply
    1,644x = 2,518 × 2,518
  4. Step 4: Simplify right side
    1,644x = 6,340,324
  5. Step 5: Solve for x
    x = 6,340,324/1,644
  6. Step 6: Final answer
    x = 3,856.64

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.