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Finding the Fourth Proportional to 64,622.42, 89,186.92 and 36,327.50

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Solution

The fourth proportional to 64,622.42, 89,186.92 and 36,327.50 is: 50,136.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,622.42 : 89,186.92 = 36,327.50 : x
  2. Step 2: Convert to fraction form
    64,622.42/89,186.92 = 36,327.50/x
  3. Step 3: Cross multiply
    64,622.42x = 89,186.92 × 36,327.50
  4. Step 4: Simplify right side
    64,622.42x = 3,239,937,836.30
  5. Step 5: Solve for x
    x = 3,239,937,836.30/64,622.42
  6. Step 6: Final answer
    x = 50,136.44

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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.