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Finding the Third Proportional to 12,372 and 19,186.50

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Solution

The third proportional to 12,372 and 19,186.50 is: 29,754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372 : 19,186.50 = 19,186.50 : x
  2. Step 2: Convert to fraction form
    12,372/19,186.50 = 19,186.50/x
  3. Step 3: Cross multiply
    12,372x = 19,186.50 × 19,186.50
  4. Step 4: Simplify right side
    12,372x = 368,121,782.25
  5. Step 5: Solve for x
    x = 368,121,782.25/12,372
  6. Step 6: Final answer
    x = 29,754.43

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.