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Finding the Fourth Proportional to 66,565.44, 91,859.52 and 38,268.96

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Solution

The fourth proportional to 66,565.44, 91,859.52 and 38,268.96 is: 52,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,565.44 : 91,859.52 = 38,268.96 : x
  2. Step 2: Convert to fraction form
    66,565.44/91,859.52 = 38,268.96/x
  3. Step 3: Cross multiply
    66,565.44x = 91,859.52 × 38,268.96
  4. Step 4: Simplify right side
    66,565.44x = 3,515,368,296.50
  5. Step 5: Solve for x
    x = 3,515,368,296.50/66,565.44
  6. Step 6: Final answer
    x = 52,810.71

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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.