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Finding the Fourth Proportional to 58,879.88, 88,343.42 and 21,442.56

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Solution

The fourth proportional to 58,879.88, 88,343.42 and 21,442.56 is: 32,172.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,879.88 : 88,343.42 = 21,442.56 : x
  2. Step 2: Convert to fraction form
    58,879.88/88,343.42 = 21,442.56/x
  3. Step 3: Cross multiply
    58,879.88x = 88,343.42 × 21,442.56
  4. Step 4: Simplify right side
    58,879.88x = 1,894,308,976.74
  5. Step 5: Solve for x
    x = 1,894,308,976.74/58,879.88
  6. Step 6: Final answer
    x = 32,172.43

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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.