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Finding the Third Proportional to 14,712 and 16,908

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Solution

The third proportional to 14,712 and 16,908 is: 19,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,712 : 16,908 = 16,908 : x
  2. Step 2: Convert to fraction form
    14,712/16,908 = 16,908/x
  3. Step 3: Cross multiply
    14,712x = 16,908 × 16,908
  4. Step 4: Simplify right side
    14,712x = 285,880,464
  5. Step 5: Solve for x
    x = 285,880,464/14,712
  6. Step 6: Final answer
    x = 19,431.79

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.