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Finding the Fourth Proportional to 66,226.16, 91,405.08 and 37,950.80

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Solution

The fourth proportional to 66,226.16, 91,405.08 and 37,950.80 is: 52,379.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,226.16 : 91,405.08 = 37,950.80 : x
  2. Step 2: Convert to fraction form
    66,226.16/91,405.08 = 37,950.80/x
  3. Step 3: Cross multiply
    66,226.16x = 91,405.08 × 37,950.80
  4. Step 4: Simplify right side
    66,226.16x = 3,468,895,910.06
  5. Step 5: Solve for x
    x = 3,468,895,910.06/66,226.16
  6. Step 6: Final answer
    x = 52,379.54

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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.