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Finding the Third Proportional to 2,221.50 and 4,749

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Solution

The third proportional to 2,221.50 and 4,749 is: 10,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.50 : 4,749 = 4,749 : x
  2. Step 2: Convert to fraction form
    2,221.50/4,749 = 4,749/x
  3. Step 3: Cross multiply
    2,221.50x = 4,749 × 4,749
  4. Step 4: Simplify right side
    2,221.50x = 22,553,001
  5. Step 5: Solve for x
    x = 22,553,001/2,221.50
  6. Step 6: Final answer
    x = 10,152.15

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.