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Finding the Fourth Proportional to 3,353.78, 4,629.29 and 1,956.80

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Solution

The fourth proportional to 3,353.78, 4,629.29 and 1,956.80 is: 2,701.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.78 : 4,629.29 = 1,956.80 : x
  2. Step 2: Convert to fraction form
    3,353.78/4,629.29 = 1,956.80/x
  3. Step 3: Cross multiply
    3,353.78x = 4,629.29 × 1,956.80
  4. Step 4: Simplify right side
    3,353.78x = 9,058,596.46
  5. Step 5: Solve for x
    x = 9,058,596.46/3,353.78
  6. Step 6: Final answer
    x = 2,701.01

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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.