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Finding the Third Proportional to 6,147 and 13,639.50

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Solution

The third proportional to 6,147 and 13,639.50 is: 30,264.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,147 : 13,639.50 = 13,639.50 : x
  2. Step 2: Convert to fraction form
    6,147/13,639.50 = 13,639.50/x
  3. Step 3: Cross multiply
    6,147x = 13,639.50 × 13,639.50
  4. Step 4: Simplify right side
    6,147x = 186,035,960.25
  5. Step 5: Solve for x
    x = 186,035,960.25/6,147
  6. Step 6: Final answer
    x = 30,264.51

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.