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Finding the Fourth Proportional to 66,553.94, 91,841.82 and 36,340.54

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Solution

The fourth proportional to 66,553.94, 91,841.82 and 36,340.54 is: 50,148.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,553.94 : 91,841.82 = 36,340.54 : x
  2. Step 2: Convert to fraction form
    66,553.94/91,841.82 = 36,340.54/x
  3. Step 3: Cross multiply
    66,553.94x = 91,841.82 × 36,340.54
  4. Step 4: Simplify right side
    66,553.94x = 3,337,581,333.38
  5. Step 5: Solve for x
    x = 3,337,581,333.38/66,553.94
  6. Step 6: Final answer
    x = 50,148.52

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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.