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Finding the Third Proportional to 4,246 and 8,930

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Solution

The third proportional to 4,246 and 8,930 is: 18,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,246 : 8,930 = 8,930 : x
  2. Step 2: Convert to fraction form
    4,246/8,930 = 8,930/x
  3. Step 3: Cross multiply
    4,246x = 8,930 × 8,930
  4. Step 4: Simplify right side
    4,246x = 79,744,900
  5. Step 5: Solve for x
    x = 79,744,900/4,246
  6. Step 6: Final answer
    x = 18,781.18

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.