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Finding the Third Proportional to 12,916 and 14,260

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Solution

The third proportional to 12,916 and 14,260 is: 15,743.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916 : 14,260 = 14,260 : x
  2. Step 2: Convert to fraction form
    12,916/14,260 = 14,260/x
  3. Step 3: Cross multiply
    12,916x = 14,260 × 14,260
  4. Step 4: Simplify right side
    12,916x = 203,347,600
  5. Step 5: Solve for x
    x = 203,347,600/12,916
  6. Step 6: Final answer
    x = 15,743.85

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.