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Finding the Third Proportional to 1,656 and 2,719

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Solution

The third proportional to 1,656 and 2,719 is: 4,464.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656 : 2,719 = 2,719 : x
  2. Step 2: Convert to fraction form
    1,656/2,719 = 2,719/x
  3. Step 3: Cross multiply
    1,656x = 2,719 × 2,719
  4. Step 4: Simplify right side
    1,656x = 7,392,961
  5. Step 5: Solve for x
    x = 7,392,961/1,656
  6. Step 6: Final answer
    x = 4,464.35

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.