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Finding the Third Proportional to 5,356 and 12,424

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Solution

The third proportional to 5,356 and 12,424 is: 28,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356 : 12,424 = 12,424 : x
  2. Step 2: Convert to fraction form
    5,356/12,424 = 12,424/x
  3. Step 3: Cross multiply
    5,356x = 12,424 × 12,424
  4. Step 4: Simplify right side
    5,356x = 154,355,776
  5. Step 5: Solve for x
    x = 154,355,776/5,356
  6. Step 6: Final answer
    x = 28,819.23

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.