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Finding the Fourth Proportional to 61,939.65, 85,472.49 and 33,644.73

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Solution

The fourth proportional to 61,939.65, 85,472.49 and 33,644.73 is: 46,427.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,939.65 : 85,472.49 = 33,644.73 : x
  2. Step 2: Convert to fraction form
    61,939.65/85,472.49 = 33,644.73/x
  3. Step 3: Cross multiply
    61,939.65x = 85,472.49 × 33,644.73
  4. Step 4: Simplify right side
    61,939.65x = 2,875,698,848.48
  5. Step 5: Solve for x
    x = 2,875,698,848.48/61,939.65
  6. Step 6: Final answer
    x = 46,427.43

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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.