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Finding the Fourth Proportional to 2,496, 3,744 and 1,128

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Solution

The fourth proportional to 2,496, 3,744 and 1,128 is: 1,692

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,496 : 3,744 = 1,128 : x
  2. Step 2: Convert to fraction form
    2,496/3,744 = 1,128/x
  3. Step 3: Cross multiply
    2,496x = 3,744 × 1,128
  4. Step 4: Simplify right side
    2,496x = 4,223,232
  5. Step 5: Solve for x
    x = 4,223,232/2,496
  6. Step 6: Final answer
    x = 1,692

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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.