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Finding the Fourth Proportional to 64,880.33, 89,539.22 and 36,205.11

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Solution

The fourth proportional to 64,880.33, 89,539.22 and 36,205.11 is: 49,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,880.33 : 89,539.22 = 36,205.11 : x
  2. Step 2: Convert to fraction form
    64,880.33/89,539.22 = 36,205.11/x
  3. Step 3: Cross multiply
    64,880.33x = 89,539.22 × 36,205.11
  4. Step 4: Simplify right side
    64,880.33x = 3,241,777,399.93
  5. Step 5: Solve for x
    x = 3,241,777,399.93/64,880.33
  6. Step 6: Final answer
    x = 49,965.49

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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.