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Finding the Fourth Proportional to 66,586.26, 91,891.77 and 38,291.94

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Solution

The fourth proportional to 66,586.26, 91,891.77 and 38,291.94 is: 52,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,586.26 : 91,891.77 = 38,291.94 : x
  2. Step 2: Convert to fraction form
    66,586.26/91,891.77 = 38,291.94/x
  3. Step 3: Cross multiply
    66,586.26x = 91,891.77 × 38,291.94
  4. Step 4: Simplify right side
    66,586.26x = 3,518,714,143.33
  5. Step 5: Solve for x
    x = 3,518,714,143.33/66,586.26
  6. Step 6: Final answer
    x = 52,844.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.