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Finding the Fourth Proportional to 50,634.45, 69,879.78 and 29,412.45

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Solution

The fourth proportional to 50,634.45, 69,879.78 and 29,412.45 is: 40,591.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,634.45 : 69,879.78 = 29,412.45 : x
  2. Step 2: Convert to fraction form
    50,634.45/69,879.78 = 29,412.45/x
  3. Step 3: Cross multiply
    50,634.45x = 69,879.78 × 29,412.45
  4. Step 4: Simplify right side
    50,634.45x = 2,055,335,535.26
  5. Step 5: Solve for x
    x = 2,055,335,535.26/50,634.45
  6. Step 6: Final answer
    x = 40,591.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.