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Finding the Fourth Proportional to 66,063.67, 91,167.19 and 36,992.09

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Solution

The fourth proportional to 66,063.67, 91,167.19 and 36,992.09 is: 51,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,063.67 : 91,167.19 = 36,992.09 : x
  2. Step 2: Convert to fraction form
    66,063.67/91,167.19 = 36,992.09/x
  3. Step 3: Cross multiply
    66,063.67x = 91,167.19 × 36,992.09
  4. Step 4: Simplify right side
    66,063.67x = 3,372,465,032.96
  5. Step 5: Solve for x
    x = 3,372,465,032.96/66,063.67
  6. Step 6: Final answer
    x = 51,048.71

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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.