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Finding the Fourth Proportional to 3,467.75, 5,201.63 and 1,415.75

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Solution

The fourth proportional to 3,467.75, 5,201.63 and 1,415.75 is: 2,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,467.75 : 5,201.63 = 1,415.75 : x
  2. Step 2: Convert to fraction form
    3,467.75/5,201.63 = 1,415.75/x
  3. Step 3: Cross multiply
    3,467.75x = 5,201.63 × 1,415.75
  4. Step 4: Simplify right side
    3,467.75x = 7,364,200.59
  5. Step 5: Solve for x
    x = 7,364,200.59/3,467.75
  6. Step 6: Final answer
    x = 2,123.63

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1.5x scale

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.