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Finding the Third Proportional to 3,518 and 4,922

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Solution

The third proportional to 3,518 and 4,922 is: 6,886.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518 : 4,922 = 4,922 : x
  2. Step 2: Convert to fraction form
    3,518/4,922 = 4,922/x
  3. Step 3: Cross multiply
    3,518x = 4,922 × 4,922
  4. Step 4: Simplify right side
    3,518x = 24,226,084
  5. Step 5: Solve for x
    x = 24,226,084/3,518
  6. Step 6: Final answer
    x = 6,886.32

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.