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Finding the Third Proportional to 1,440 and 2,232

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Solution

The third proportional to 1,440 and 2,232 is: 3,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440 : 2,232 = 2,232 : x
  2. Step 2: Convert to fraction form
    1,440/2,232 = 2,232/x
  3. Step 3: Cross multiply
    1,440x = 2,232 × 2,232
  4. Step 4: Simplify right side
    1,440x = 4,981,824
  5. Step 5: Solve for x
    x = 4,981,824/1,440
  6. Step 6: Final answer
    x = 3,459.60

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.