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Finding the Fourth Proportional to 67,254.82, 100,882.26 and 20,507.32

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Solution

The fourth proportional to 67,254.82, 100,882.26 and 20,507.32 is: 30,760.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,254.82 : 100,882.26 = 20,507.32 : x
  2. Step 2: Convert to fraction form
    67,254.82/100,882.26 = 20,507.32/x
  3. Step 3: Cross multiply
    67,254.82x = 100,882.26 × 20,507.32
  4. Step 4: Simplify right side
    67,254.82x = 2,068,824,788.14
  5. Step 5: Solve for x
    x = 2,068,824,788.14/67,254.82
  6. Step 6: Final answer
    x = 30,760.99

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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.