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Finding the Third Proportional to 13,149 and 28,419

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Solution

The third proportional to 13,149 and 28,419 is: 61,422.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149 : 28,419 = 28,419 : x
  2. Step 2: Convert to fraction form
    13,149/28,419 = 28,419/x
  3. Step 3: Cross multiply
    13,149x = 28,419 × 28,419
  4. Step 4: Simplify right side
    13,149x = 807,639,561
  5. Step 5: Solve for x
    x = 807,639,561/13,149
  6. Step 6: Final answer
    x = 61,422.13

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.