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Finding the Third Proportional to 12,460 and 19,080

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Solution

The third proportional to 12,460 and 19,080 is: 29,217.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460 : 19,080 = 19,080 : x
  2. Step 2: Convert to fraction form
    12,460/19,080 = 19,080/x
  3. Step 3: Cross multiply
    12,460x = 19,080 × 19,080
  4. Step 4: Simplify right side
    12,460x = 364,046,400
  5. Step 5: Solve for x
    x = 364,046,400/12,460
  6. Step 6: Final answer
    x = 29,217.21

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.