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Finding the Fourth Proportional to 66,383.96, 91,643.71 and 44,986.74

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Solution

The fourth proportional to 66,383.96, 91,643.71 and 44,986.74 is: 62,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,383.96 : 91,643.71 = 44,986.74 : x
  2. Step 2: Convert to fraction form
    66,383.96/91,643.71 = 44,986.74/x
  3. Step 3: Cross multiply
    66,383.96x = 91,643.71 × 44,986.74
  4. Step 4: Simplify right side
    66,383.96x = 4,122,751,754.41
  5. Step 5: Solve for x
    x = 4,122,751,754.41/66,383.96
  6. Step 6: Final answer
    x = 62,104.64

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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.