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Finding the Fourth Proportional to 64,952.96, 89,640.96 and 36,665.60

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Solution

The fourth proportional to 64,952.96, 89,640.96 and 36,665.60 is: 50,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,952.96 : 89,640.96 = 36,665.60 : x
  2. Step 2: Convert to fraction form
    64,952.96/89,640.96 = 36,665.60/x
  3. Step 3: Cross multiply
    64,952.96x = 89,640.96 × 36,665.60
  4. Step 4: Simplify right side
    64,952.96x = 3,286,739,582.98
  5. Step 5: Solve for x
    x = 3,286,739,582.98/64,952.96
  6. Step 6: Final answer
    x = 50,601.84

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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.