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Finding the Fourth Proportional to 58,351.35, 87,531.62 and 28,753.05

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Solution

The fourth proportional to 58,351.35, 87,531.62 and 28,753.05 is: 43,131.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,351.35 : 87,531.62 = 28,753.05 : x
  2. Step 2: Convert to fraction form
    58,351.35/87,531.62 = 28,753.05/x
  3. Step 3: Cross multiply
    58,351.35x = 87,531.62 × 28,753.05
  4. Step 4: Simplify right side
    58,351.35x = 2,516,801,046.44
  5. Step 5: Solve for x
    x = 2,516,801,046.44/58,351.35
  6. Step 6: Final answer
    x = 43,131.84

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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.