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Finding the Third Proportional to 14,931 and 16,902

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Solution

The third proportional to 14,931 and 16,902 is: 19,133.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,931 : 16,902 = 16,902 : x
  2. Step 2: Convert to fraction form
    14,931/16,902 = 16,902/x
  3. Step 3: Cross multiply
    14,931x = 16,902 × 16,902
  4. Step 4: Simplify right side
    14,931x = 285,677,604
  5. Step 5: Solve for x
    x = 285,677,604/14,931
  6. Step 6: Final answer
    x = 19,133.19

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.