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Finding the Fourth Proportional to 66,969.50, 92,421.27 and 36,754.56

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Solution

The fourth proportional to 66,969.50, 92,421.27 and 36,754.56 is: 50,723.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,969.50 : 92,421.27 = 36,754.56 : x
  2. Step 2: Convert to fraction form
    66,969.50/92,421.27 = 36,754.56/x
  3. Step 3: Cross multiply
    66,969.50x = 92,421.27 × 36,754.56
  4. Step 4: Simplify right side
    66,969.50x = 3,396,903,113.49
  5. Step 5: Solve for x
    x = 3,396,903,113.49/66,969.50
  6. Step 6: Final answer
    x = 50,723.14

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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.