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Finding the Fourth Proportional to 1,896, 2,616.48 and 1,344.96

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Solution

The fourth proportional to 1,896, 2,616.48 and 1,344.96 is: 1,856.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896 : 2,616.48 = 1,344.96 : x
  2. Step 2: Convert to fraction form
    1,896/2,616.48 = 1,344.96/x
  3. Step 3: Cross multiply
    1,896x = 2,616.48 × 1,344.96
  4. Step 4: Simplify right side
    1,896x = 3,519,060.94
  5. Step 5: Solve for x
    x = 3,519,060.94/1,896
  6. Step 6: Final answer
    x = 1,856.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.