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Finding the Fourth Proportional to 67,674.88, 101,525.82 and 20,926

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Solution

The fourth proportional to 67,674.88, 101,525.82 and 20,926 is: 31,393.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,674.88 : 101,525.82 = 20,926 : x
  2. Step 2: Convert to fraction form
    67,674.88/101,525.82 = 20,926/x
  3. Step 3: Cross multiply
    67,674.88x = 101,525.82 × 20,926
  4. Step 4: Simplify right side
    67,674.88x = 2,124,529,309.32
  5. Step 5: Solve for x
    x = 2,124,529,309.32/67,674.88
  6. Step 6: Final answer
    x = 31,393.17

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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.