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Finding the Fourth Proportional to 67,135.99, 92,645.80 and 36,921.30

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Solution

The fourth proportional to 67,135.99, 92,645.80 and 36,921.30 is: 50,950.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,135.99 : 92,645.80 = 36,921.30 : x
  2. Step 2: Convert to fraction form
    67,135.99/92,645.80 = 36,921.30/x
  3. Step 3: Cross multiply
    67,135.99x = 92,645.80 × 36,921.30
  4. Step 4: Simplify right side
    67,135.99x = 3,420,603,190.93
  5. Step 5: Solve for x
    x = 3,420,603,190.93/67,135.99
  6. Step 6: Final answer
    x = 50,950.37

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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.