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Finding the Fourth Proportional to 66,198.77, 91,352.07 and 37,898.99

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Solution

The fourth proportional to 66,198.77, 91,352.07 and 37,898.99 is: 52,299.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,198.77 : 91,352.07 = 37,898.99 : x
  2. Step 2: Convert to fraction form
    66,198.77/91,352.07 = 37,898.99/x
  3. Step 3: Cross multiply
    66,198.77x = 91,352.07 × 37,898.99
  4. Step 4: Simplify right side
    66,198.77x = 3,462,150,730.65
  5. Step 5: Solve for x
    x = 3,462,150,730.65/66,198.77
  6. Step 6: Final answer
    x = 52,299.33

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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.