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Finding the Third Proportional to 14,784 and 19,917

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Solution

The third proportional to 14,784 and 19,917 is: 26,832.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,784 : 19,917 = 19,917 : x
  2. Step 2: Convert to fraction form
    14,784/19,917 = 19,917/x
  3. Step 3: Cross multiply
    14,784x = 19,917 × 19,917
  4. Step 4: Simplify right side
    14,784x = 396,686,889
  5. Step 5: Solve for x
    x = 396,686,889/14,784
  6. Step 6: Final answer
    x = 26,832.18

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.