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Finding the Fourth Proportional to 64,656.63, 89,234.46 and 36,367.79

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Solution

The fourth proportional to 64,656.63, 89,234.46 and 36,367.79 is: 50,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,656.63 : 89,234.46 = 36,367.79 : x
  2. Step 2: Convert to fraction form
    64,656.63/89,234.46 = 36,367.79/x
  3. Step 3: Cross multiply
    64,656.63x = 89,234.46 × 36,367.79
  4. Step 4: Simplify right side
    64,656.63x = 3,245,259,655.87
  5. Step 5: Solve for x
    x = 3,245,259,655.87/64,656.63
  6. Step 6: Final answer
    x = 50,192.22

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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.