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Finding the Third Proportional to 2,157 and 3,232

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Solution

The third proportional to 2,157 and 3,232 is: 4,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157 : 3,232 = 3,232 : x
  2. Step 2: Convert to fraction form
    2,157/3,232 = 3,232/x
  3. Step 3: Cross multiply
    2,157x = 3,232 × 3,232
  4. Step 4: Simplify right side
    2,157x = 10,445,824
  5. Step 5: Solve for x
    x = 10,445,824/2,157
  6. Step 6: Final answer
    x = 4,842.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.