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Finding the Fourth Proportional to 64,764.46, 89,387.52 and 36,470.32

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Solution

The fourth proportional to 64,764.46, 89,387.52 and 36,470.32 is: 50,336.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,764.46 : 89,387.52 = 36,470.32 : x
  2. Step 2: Convert to fraction form
    64,764.46/89,387.52 = 36,470.32/x
  3. Step 3: Cross multiply
    64,764.46x = 89,387.52 × 36,470.32
  4. Step 4: Simplify right side
    64,764.46x = 3,259,991,458.41
  5. Step 5: Solve for x
    x = 3,259,991,458.41/64,764.46
  6. Step 6: Final answer
    x = 50,336.12

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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.