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Finding the Fourth Proportional to 30,367.39, 45,571.42 and 10,645.94

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Solution

The fourth proportional to 30,367.39, 45,571.42 and 10,645.94 is: 15,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,367.39 : 45,571.42 = 10,645.94 : x
  2. Step 2: Convert to fraction form
    30,367.39/45,571.42 = 10,645.94/x
  3. Step 3: Cross multiply
    30,367.39x = 45,571.42 × 10,645.94
  4. Step 4: Simplify right side
    30,367.39x = 485,150,690.35
  5. Step 5: Solve for x
    x = 485,150,690.35/30,367.39
  6. Step 6: Final answer
    x = 15,976.04

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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.