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Finding the Fourth Proportional to 67,005.88, 100,419.29 and 35,408.44

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Solution

The fourth proportional to 67,005.88, 100,419.29 and 35,408.44 is: 53,065.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,005.88 : 100,419.29 = 35,408.44 : x
  2. Step 2: Convert to fraction form
    67,005.88/100,419.29 = 35,408.44/x
  3. Step 3: Cross multiply
    67,005.88x = 100,419.29 × 35,408.44
  4. Step 4: Simplify right side
    67,005.88x = 3,555,690,685.24
  5. Step 5: Solve for x
    x = 3,555,690,685.24/67,005.88
  6. Step 6: Final answer
    x = 53,065.35

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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.