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Finding the Fourth Proportional to 50,785.80, 70,093.86 and 29,568.12

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Solution

The fourth proportional to 50,785.80, 70,093.86 and 29,568.12 is: 40,809.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,785.80 : 70,093.86 = 29,568.12 : x
  2. Step 2: Convert to fraction form
    50,785.80/70,093.86 = 29,568.12/x
  3. Step 3: Cross multiply
    50,785.80x = 70,093.86 × 29,568.12
  4. Step 4: Simplify right side
    50,785.80x = 2,072,543,663.74
  5. Step 5: Solve for x
    x = 2,072,543,663.74/50,785.80
  6. Step 6: Final answer
    x = 40,809.51

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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.