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Finding the Third Proportional to 12,844 and 19,715

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Solution

The third proportional to 12,844 and 19,715 is: 30,261.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,844 : 19,715 = 19,715 : x
  2. Step 2: Convert to fraction form
    12,844/19,715 = 19,715/x
  3. Step 3: Cross multiply
    12,844x = 19,715 × 19,715
  4. Step 4: Simplify right side
    12,844x = 388,681,225
  5. Step 5: Solve for x
    x = 388,681,225/12,844
  6. Step 6: Final answer
    x = 30,261.70

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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.