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Finding the Fourth Proportional to 64,343.28, 88,796.16 and 36,048

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Solution

The fourth proportional to 64,343.28, 88,796.16 and 36,048 is: 49,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,343.28 : 88,796.16 = 36,048 : x
  2. Step 2: Convert to fraction form
    64,343.28/88,796.16 = 36,048/x
  3. Step 3: Cross multiply
    64,343.28x = 88,796.16 × 36,048
  4. Step 4: Simplify right side
    64,343.28x = 3,200,923,975.68
  5. Step 5: Solve for x
    x = 3,200,923,975.68/64,343.28
  6. Step 6: Final answer
    x = 49,747.60

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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.