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Finding the Fourth Proportional to 64,640.29, 96,936.43 and 22,509.55

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Solution

The fourth proportional to 64,640.29, 96,936.43 and 22,509.55 is: 33,755.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,640.29 : 96,936.43 = 22,509.55 : x
  2. Step 2: Convert to fraction form
    64,640.29/96,936.43 = 22,509.55/x
  3. Step 3: Cross multiply
    64,640.29x = 96,936.43 × 22,509.55
  4. Step 4: Simplify right side
    64,640.29x = 2,181,995,417.91
  5. Step 5: Solve for x
    x = 2,181,995,417.91/64,640.29
  6. Step 6: Final answer
    x = 33,755.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.