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Finding the Third Proportional to 13,421 and 29,149

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Solution

The third proportional to 13,421 and 29,149 is: 63,308.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,421 : 29,149 = 29,149 : x
  2. Step 2: Convert to fraction form
    13,421/29,149 = 29,149/x
  3. Step 3: Cross multiply
    13,421x = 29,149 × 29,149
  4. Step 4: Simplify right side
    13,421x = 849,664,201
  5. Step 5: Solve for x
    x = 849,664,201/13,421
  6. Step 6: Final answer
    x = 63,308.56

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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.