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Finding the Third Proportional to 13,431 and 29,169

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Solution

The third proportional to 13,431 and 29,169 is: 63,348.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431 : 29,169 = 29,169 : x
  2. Step 2: Convert to fraction form
    13,431/29,169 = 29,169/x
  3. Step 3: Cross multiply
    13,431x = 29,169 × 29,169
  4. Step 4: Simplify right side
    13,431x = 850,830,561
  5. Step 5: Solve for x
    x = 850,830,561/13,431
  6. Step 6: Final answer
    x = 63,348.27

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.