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Finding the Third Proportional to 12,602 and 15,410

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Solution

The third proportional to 12,602 and 15,410 is: 18,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602 : 15,410 = 15,410 : x
  2. Step 2: Convert to fraction form
    12,602/15,410 = 15,410/x
  3. Step 3: Cross multiply
    12,602x = 15,410 × 15,410
  4. Step 4: Simplify right side
    12,602x = 237,468,100
  5. Step 5: Solve for x
    x = 237,468,100/12,602
  6. Step 6: Final answer
    x = 18,843.68

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.