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Finding the Third Proportional to 13,126 and 15,826

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Solution

The third proportional to 13,126 and 15,826 is: 19,081.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126 : 15,826 = 15,826 : x
  2. Step 2: Convert to fraction form
    13,126/15,826 = 15,826/x
  3. Step 3: Cross multiply
    13,126x = 15,826 × 15,826
  4. Step 4: Simplify right side
    13,126x = 250,462,276
  5. Step 5: Solve for x
    x = 250,462,276/13,126
  6. Step 6: Final answer
    x = 19,081.39

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.