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Finding the Fourth Proportional to 64,872.66, 89,524.11 and 36,578.16

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Solution

The fourth proportional to 64,872.66, 89,524.11 and 36,578.16 is: 50,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,872.66 : 89,524.11 = 36,578.16 : x
  2. Step 2: Convert to fraction form
    64,872.66/89,524.11 = 36,578.16/x
  3. Step 3: Cross multiply
    64,872.66x = 89,524.11 × 36,578.16
  4. Step 4: Simplify right side
    64,872.66x = 3,274,627,219.44
  5. Step 5: Solve for x
    x = 3,274,627,219.44/64,872.66
  6. Step 6: Final answer
    x = 50,477.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.