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Finding the Fourth Proportional to 67,107, 92,610.09 and 38,431.92

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Solution

The fourth proportional to 67,107, 92,610.09 and 38,431.92 is: 53,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,107 : 92,610.09 = 38,431.92 : x
  2. Step 2: Convert to fraction form
    67,107/92,610.09 = 38,431.92/x
  3. Step 3: Cross multiply
    67,107x = 92,610.09 × 38,431.92
  4. Step 4: Simplify right side
    67,107x = 3,559,183,570.07
  5. Step 5: Solve for x
    x = 3,559,183,570.07/67,107
  6. Step 6: Final answer
    x = 53,037.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.