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Finding the Fourth Proportional to 58,538.91, 87,771.90 and 19,090.29

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Solution

The fourth proportional to 58,538.91, 87,771.90 and 19,090.29 is: 28,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,538.91 : 87,771.90 = 19,090.29 : x
  2. Step 2: Convert to fraction form
    58,538.91/87,771.90 = 19,090.29/x
  3. Step 3: Cross multiply
    58,538.91x = 87,771.90 × 19,090.29
  4. Step 4: Simplify right side
    58,538.91x = 1,675,591,024.85
  5. Step 5: Solve for x
    x = 1,675,591,024.85/58,538.91
  6. Step 6: Final answer
    x = 28,623.54

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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.