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Finding the Fourth Proportional to 64,878.56, 89,532.26 and 36,584.04

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Solution

The fourth proportional to 64,878.56, 89,532.26 and 36,584.04 is: 50,485.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,878.56 : 89,532.26 = 36,584.04 : x
  2. Step 2: Convert to fraction form
    64,878.56/89,532.26 = 36,584.04/x
  3. Step 3: Cross multiply
    64,878.56x = 89,532.26 × 36,584.04
  4. Step 4: Simplify right side
    64,878.56x = 3,275,451,598.21
  5. Step 5: Solve for x
    x = 3,275,451,598.21/64,878.56
  6. Step 6: Final answer
    x = 50,485.89

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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.