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Finding the Third Proportional to 4,017.50 and 8,749

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Solution

The third proportional to 4,017.50 and 8,749 is: 19,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,017.50 : 8,749 = 8,749 : x
  2. Step 2: Convert to fraction form
    4,017.50/8,749 = 8,749/x
  3. Step 3: Cross multiply
    4,017.50x = 8,749 × 8,749
  4. Step 4: Simplify right side
    4,017.50x = 76,545,001
  5. Step 5: Solve for x
    x = 76,545,001/4,017.50
  6. Step 6: Final answer
    x = 19,052.89

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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.