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Finding the Fourth Proportional to 61,879.41, 85,329.03 and 36,724.05

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Solution

The fourth proportional to 61,879.41, 85,329.03 and 36,724.05 is: 50,640.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,879.41 : 85,329.03 = 36,724.05 : x
  2. Step 2: Convert to fraction form
    61,879.41/85,329.03 = 36,724.05/x
  3. Step 3: Cross multiply
    61,879.41x = 85,329.03 × 36,724.05
  4. Step 4: Simplify right side
    61,879.41x = 3,133,627,564.17
  5. Step 5: Solve for x
    x = 3,133,627,564.17/61,879.41
  6. Step 6: Final answer
    x = 50,640.88

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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.