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Finding the Fourth Proportional to 50,449.68, 69,621.12 and 31,597.92

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Solution

The fourth proportional to 50,449.68, 69,621.12 and 31,597.92 is: 43,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,449.68 : 69,621.12 = 31,597.92 : x
  2. Step 2: Convert to fraction form
    50,449.68/69,621.12 = 31,597.92/x
  3. Step 3: Cross multiply
    50,449.68x = 69,621.12 × 31,597.92
  4. Step 4: Simplify right side
    50,449.68x = 2,199,882,580.07
  5. Step 5: Solve for x
    x = 2,199,882,580.07/50,449.68
  6. Step 6: Final answer
    x = 43,605.48

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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.