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Finding the Fourth Proportional to 64,896.39, 89,536.05 and 36,211.41

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Solution

The fourth proportional to 64,896.39, 89,536.05 and 36,211.41 is: 49,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,896.39 : 89,536.05 = 36,211.41 : x
  2. Step 2: Convert to fraction form
    64,896.39/89,536.05 = 36,211.41/x
  3. Step 3: Cross multiply
    64,896.39x = 89,536.05 × 36,211.41
  4. Step 4: Simplify right side
    64,896.39x = 3,242,226,616.33
  5. Step 5: Solve for x
    x = 3,242,226,616.33/64,896.39
  6. Step 6: Final answer
    x = 49,960.05

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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.