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Finding the Fourth Proportional to 57,879.36, 86,824.71 and 29,722.14

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Solution

The fourth proportional to 57,879.36, 86,824.71 and 29,722.14 is: 44,586.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,879.36 : 86,824.71 = 29,722.14 : x
  2. Step 2: Convert to fraction form
    57,879.36/86,824.71 = 29,722.14/x
  3. Step 3: Cross multiply
    57,879.36x = 86,824.71 × 29,722.14
  4. Step 4: Simplify right side
    57,879.36x = 2,580,616,186.08
  5. Step 5: Solve for x
    x = 2,580,616,186.08/57,879.36
  6. Step 6: Final answer
    x = 44,586.12

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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.