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Finding the Fourth Proportional to 66,377.58, 91,599.99 and 36,163.28

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Solution

The fourth proportional to 66,377.58, 91,599.99 and 36,163.28 is: 49,904.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,377.58 : 91,599.99 = 36,163.28 : x
  2. Step 2: Convert to fraction form
    66,377.58/91,599.99 = 36,163.28/x
  3. Step 3: Cross multiply
    66,377.58x = 91,599.99 × 36,163.28
  4. Step 4: Simplify right side
    66,377.58x = 3,312,555,628.37
  5. Step 5: Solve for x
    x = 3,312,555,628.37/66,377.58
  6. Step 6: Final answer
    x = 49,904.74

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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.