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Finding the Fourth Proportional to 67,167.93, 100,735.75 and 19,770.15

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Solution

The fourth proportional to 67,167.93, 100,735.75 and 19,770.15 is: 29,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,167.93 : 100,735.75 = 19,770.15 : x
  2. Step 2: Convert to fraction form
    67,167.93/100,735.75 = 19,770.15/x
  3. Step 3: Cross multiply
    67,167.93x = 100,735.75 × 19,770.15
  4. Step 4: Simplify right side
    67,167.93x = 1,991,560,887.86
  5. Step 5: Solve for x
    x = 1,991,560,887.86/67,167.93
  6. Step 6: Final answer
    x = 29,650.47

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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.