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Finding the Third Proportional to 4,917.50 and 10,699

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Solution

The third proportional to 4,917.50 and 10,699 is: 23,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.50 : 10,699 = 10,699 : x
  2. Step 2: Convert to fraction form
    4,917.50/10,699 = 10,699/x
  3. Step 3: Cross multiply
    4,917.50x = 10,699 × 10,699
  4. Step 4: Simplify right side
    4,917.50x = 114,468,601
  5. Step 5: Solve for x
    x = 114,468,601/4,917.50
  6. Step 6: Final answer
    x = 23,277.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.