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Finding the Fourth Proportional to 58,229.27, 87,362.36 and 20,788.54

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Solution

The fourth proportional to 58,229.27, 87,362.36 and 20,788.54 is: 31,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,229.27 : 87,362.36 = 20,788.54 : x
  2. Step 2: Convert to fraction form
    58,229.27/87,362.36 = 20,788.54/x
  3. Step 3: Cross multiply
    58,229.27x = 87,362.36 × 20,788.54
  4. Step 4: Simplify right side
    58,229.27x = 1,816,135,915.35
  5. Step 5: Solve for x
    x = 1,816,135,915.35/58,229.27
  6. Step 6: Final answer
    x = 31,189.40

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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.