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Finding the Fourth Proportional to 64,879.79, 89,533.96 and 36,585.27

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Solution

The fourth proportional to 64,879.79, 89,533.96 and 36,585.27 is: 50,487.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,879.79 : 89,533.96 = 36,585.27 : x
  2. Step 2: Convert to fraction form
    64,879.79/89,533.96 = 36,585.27/x
  3. Step 3: Cross multiply
    64,879.79x = 89,533.96 × 36,585.27
  4. Step 4: Simplify right side
    64,879.79x = 3,275,624,009.31
  5. Step 5: Solve for x
    x = 3,275,624,009.31/64,879.79
  6. Step 6: Final answer
    x = 50,487.59

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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.