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Finding the Fourth Proportional to 50,891.76, 70,231.32 and 38,122.32

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Solution

The fourth proportional to 50,891.76, 70,231.32 and 38,122.32 is: 52,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,891.76 : 70,231.32 = 38,122.32 : x
  2. Step 2: Convert to fraction form
    50,891.76/70,231.32 = 38,122.32/x
  3. Step 3: Cross multiply
    50,891.76x = 70,231.32 × 38,122.32
  4. Step 4: Simplify right side
    50,891.76x = 2,677,380,855.06
  5. Step 5: Solve for x
    x = 2,677,380,855.06/50,891.76
  6. Step 6: Final answer
    x = 52,609.32

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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.