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Finding the Third Proportional to 12,386 and 19,416

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Solution

The third proportional to 12,386 and 19,416 is: 30,436.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386 : 19,416 = 19,416 : x
  2. Step 2: Convert to fraction form
    12,386/19,416 = 19,416/x
  3. Step 3: Cross multiply
    12,386x = 19,416 × 19,416
  4. Step 4: Simplify right side
    12,386x = 376,981,056
  5. Step 5: Solve for x
    x = 376,981,056/12,386
  6. Step 6: Final answer
    x = 30,436.06

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.