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Finding the Third Proportional to 1,814 and 4,639

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Solution

The third proportional to 1,814 and 4,639 is: 11,863.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814 : 4,639 = 4,639 : x
  2. Step 2: Convert to fraction form
    1,814/4,639 = 4,639/x
  3. Step 3: Cross multiply
    1,814x = 4,639 × 4,639
  4. Step 4: Simplify right side
    1,814x = 21,520,321
  5. Step 5: Solve for x
    x = 21,520,321/1,814
  6. Step 6: Final answer
    x = 11,863.46

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.