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Finding the Third Proportional to 7,615 and 16,651

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Solution

The third proportional to 7,615 and 16,651 is: 36,409.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615 : 16,651 = 16,651 : x
  2. Step 2: Convert to fraction form
    7,615/16,651 = 16,651/x
  3. Step 3: Cross multiply
    7,615x = 16,651 × 16,651
  4. Step 4: Simplify right side
    7,615x = 277,255,801
  5. Step 5: Solve for x
    x = 277,255,801/7,615
  6. Step 6: Final answer
    x = 36,409.17

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.