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Finding the Fourth Proportional to 3,634.70, 5,443.95 and 3,148.70

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Solution

The fourth proportional to 3,634.70, 5,443.95 and 3,148.70 is: 4,716.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,634.70 : 5,443.95 = 3,148.70 : x
  2. Step 2: Convert to fraction form
    3,634.70/5,443.95 = 3,148.70/x
  3. Step 3: Cross multiply
    3,634.70x = 5,443.95 × 3,148.70
  4. Step 4: Simplify right side
    3,634.70x = 17,141,365.37
  5. Step 5: Solve for x
    x = 17,141,365.37/3,634.70
  6. Step 6: Final answer
    x = 4,716.03

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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.