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Finding the Fourth Proportional to 64,891.56, 89,551.68 and 36,591.84

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Solution

The fourth proportional to 64,891.56, 89,551.68 and 36,591.84 is: 50,497.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,891.56 : 89,551.68 = 36,591.84 : x
  2. Step 2: Convert to fraction form
    64,891.56/89,551.68 = 36,591.84/x
  3. Step 3: Cross multiply
    64,891.56x = 89,551.68 × 36,591.84
  4. Step 4: Simplify right side
    64,891.56x = 3,276,860,746.29
  5. Step 5: Solve for x
    x = 3,276,860,746.29/64,891.56
  6. Step 6: Final answer
    x = 50,497.49

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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.