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Finding the Fourth Proportional to 64,825.26, 89,458.86 and 36,531.96

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Solution

The fourth proportional to 64,825.26, 89,458.86 and 36,531.96 is: 50,414.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,825.26 : 89,458.86 = 36,531.96 : x
  2. Step 2: Convert to fraction form
    64,825.26/89,458.86 = 36,531.96/x
  3. Step 3: Cross multiply
    64,825.26x = 89,458.86 × 36,531.96
  4. Step 4: Simplify right side
    64,825.26x = 3,268,107,495.17
  5. Step 5: Solve for x
    x = 3,268,107,495.17/64,825.26
  6. Step 6: Final answer
    x = 50,414.11

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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.