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Finding the Fourth Proportional to 67,434.82, 101,163.18 and 25,318.21

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Solution

The fourth proportional to 67,434.82, 101,163.18 and 25,318.21 is: 37,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,434.82 : 101,163.18 = 25,318.21 : x
  2. Step 2: Convert to fraction form
    67,434.82/101,163.18 = 25,318.21/x
  3. Step 3: Cross multiply
    67,434.82x = 101,163.18 × 25,318.21
  4. Step 4: Simplify right side
    67,434.82x = 2,561,270,635.51
  5. Step 5: Solve for x
    x = 2,561,270,635.51/67,434.82
  6. Step 6: Final answer
    x = 37,981.43

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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.