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Finding the Fourth Proportional to 50,785.52, 70,083.83 and 28,429.52

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Solution

The fourth proportional to 50,785.52, 70,083.83 and 28,429.52 is: 39,232.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,785.52 : 70,083.83 = 28,429.52 : x
  2. Step 2: Convert to fraction form
    50,785.52/70,083.83 = 28,429.52/x
  3. Step 3: Cross multiply
    50,785.52x = 70,083.83 × 28,429.52
  4. Step 4: Simplify right side
    50,785.52x = 1,992,449,154.09
  5. Step 5: Solve for x
    x = 1,992,449,154.09/50,785.52
  6. Step 6: Final answer
    x = 39,232.63

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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.