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Finding the Third Proportional to 14,424 and 19,788

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Solution

The third proportional to 14,424 and 19,788 is: 27,146.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,424 : 19,788 = 19,788 : x
  2. Step 2: Convert to fraction form
    14,424/19,788 = 19,788/x
  3. Step 3: Cross multiply
    14,424x = 19,788 × 19,788
  4. Step 4: Simplify right side
    14,424x = 391,564,944
  5. Step 5: Solve for x
    x = 391,564,944/14,424
  6. Step 6: Final answer
    x = 27,146.77

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.