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Finding the Fourth Proportional to 66,776.87, 92,149.23 and 36,561.64

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Solution

The fourth proportional to 66,776.87, 92,149.23 and 36,561.64 is: 50,453.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,776.87 : 92,149.23 = 36,561.64 : x
  2. Step 2: Convert to fraction form
    66,776.87/92,149.23 = 36,561.64/x
  3. Step 3: Cross multiply
    66,776.87x = 92,149.23 × 36,561.64
  4. Step 4: Simplify right side
    66,776.87x = 3,369,126,790.73
  5. Step 5: Solve for x
    x = 3,369,126,790.73/66,776.87
  6. Step 6: Final answer
    x = 50,453.50

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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.