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Finding the Fourth Proportional to 4,629.78, 6,944.70 and 1,551.78

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Solution

The fourth proportional to 4,629.78, 6,944.70 and 1,551.78 is: 2,327.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,629.78 : 6,944.70 = 1,551.78 : x
  2. Step 2: Convert to fraction form
    4,629.78/6,944.70 = 1,551.78/x
  3. Step 3: Cross multiply
    4,629.78x = 6,944.70 × 1,551.78
  4. Step 4: Simplify right side
    4,629.78x = 10,776,646.57
  5. Step 5: Solve for x
    x = 10,776,646.57/4,629.78
  6. Step 6: Final answer
    x = 2,327.68

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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.