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Finding the Third Proportional to 2,170.50 and 4,827

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Solution

The third proportional to 2,170.50 and 4,827 is: 10,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.50 : 4,827 = 4,827 : x
  2. Step 2: Convert to fraction form
    2,170.50/4,827 = 4,827/x
  3. Step 3: Cross multiply
    2,170.50x = 4,827 × 4,827
  4. Step 4: Simplify right side
    2,170.50x = 23,299,929
  5. Step 5: Solve for x
    x = 23,299,929/2,170.50
  6. Step 6: Final answer
    x = 10,734.82

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.