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Finding the Third Proportional to 12,992 and 14,432

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Solution

The third proportional to 12,992 and 14,432 is: 16,031.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,992 : 14,432 = 14,432 : x
  2. Step 2: Convert to fraction form
    12,992/14,432 = 14,432/x
  3. Step 3: Cross multiply
    12,992x = 14,432 × 14,432
  4. Step 4: Simplify right side
    12,992x = 208,282,624
  5. Step 5: Solve for x
    x = 208,282,624/12,992
  6. Step 6: Final answer
    x = 16,031.61

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.