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Finding the Fourth Proportional to 66,359.50, 91,576.12 and 36,551.50

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Solution

The fourth proportional to 66,359.50, 91,576.12 and 36,551.50 is: 50,441.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,359.50 : 91,576.12 = 36,551.50 : x
  2. Step 2: Convert to fraction form
    66,359.50/91,576.12 = 36,551.50/x
  3. Step 3: Cross multiply
    66,359.50x = 91,576.12 × 36,551.50
  4. Step 4: Simplify right side
    66,359.50x = 3,347,244,550.18
  5. Step 5: Solve for x
    x = 3,347,244,550.18/66,359.50
  6. Step 6: Final answer
    x = 50,441.08

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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.