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Finding the Third Proportional to 3,232 and 7,220

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Solution

The third proportional to 3,232 and 7,220 is: 16,128.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,232 : 7,220 = 7,220 : x
  2. Step 2: Convert to fraction form
    3,232/7,220 = 7,220/x
  3. Step 3: Cross multiply
    3,232x = 7,220 × 7,220
  4. Step 4: Simplify right side
    3,232x = 52,128,400
  5. Step 5: Solve for x
    x = 52,128,400/3,232
  6. Step 6: Final answer
    x = 16,128.84

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.