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Finding the Third Proportional to 7,147 and 16,702

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Solution

The third proportional to 7,147 and 16,702 is: 39,031.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147 : 16,702 = 16,702 : x
  2. Step 2: Convert to fraction form
    7,147/16,702 = 16,702/x
  3. Step 3: Cross multiply
    7,147x = 16,702 × 16,702
  4. Step 4: Simplify right side
    7,147x = 278,956,804
  5. Step 5: Solve for x
    x = 278,956,804/7,147
  6. Step 6: Final answer
    x = 39,031.31

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.