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Finding the Fourth Proportional to 64,342.76, 88,796.64 and 36,057.56

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Solution

The fourth proportional to 64,342.76, 88,796.64 and 36,057.56 is: 49,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,342.76 : 88,796.64 = 36,057.56 : x
  2. Step 2: Convert to fraction form
    64,342.76/88,796.64 = 36,057.56/x
  3. Step 3: Cross multiply
    64,342.76x = 88,796.64 × 36,057.56
  4. Step 4: Simplify right side
    64,342.76x = 3,201,790,174.60
  5. Step 5: Solve for x
    x = 3,201,790,174.60/64,342.76
  6. Step 6: Final answer
    x = 49,761.47

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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.