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Finding the Fourth Proportional to 76,797.64, 115,211.24 and 26,891.92

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Solution

The fourth proportional to 76,797.64, 115,211.24 and 26,891.92 is: 40,343.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,797.64 : 115,211.24 = 26,891.92 : x
  2. Step 2: Convert to fraction form
    76,797.64/115,211.24 = 26,891.92/x
  3. Step 3: Cross multiply
    76,797.64x = 115,211.24 × 26,891.92
  4. Step 4: Simplify right side
    76,797.64x = 3,098,251,449.18
  5. Step 5: Solve for x
    x = 3,098,251,449.18/76,797.64
  6. Step 6: Final answer
    x = 40,343.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.