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Finding the Fourth Proportional to 3,558.74, 5,338.11 and 1,708.70

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Solution

The fourth proportional to 3,558.74, 5,338.11 and 1,708.70 is: 2,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.74 : 5,338.11 = 1,708.70 : x
  2. Step 2: Convert to fraction form
    3,558.74/5,338.11 = 1,708.70/x
  3. Step 3: Cross multiply
    3,558.74x = 5,338.11 × 1,708.70
  4. Step 4: Simplify right side
    3,558.74x = 9,121,228.56
  5. Step 5: Solve for x
    x = 9,121,228.56/3,558.74
  6. Step 6: Final answer
    x = 2,563.05

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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.