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Finding the Fourth Proportional to 58,518.56, 87,791.02 and 18,539.96

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Solution

The fourth proportional to 58,518.56, 87,791.02 and 18,539.96 is: 27,814.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,518.56 : 87,791.02 = 18,539.96 : x
  2. Step 2: Convert to fraction form
    58,518.56/87,791.02 = 18,539.96/x
  3. Step 3: Cross multiply
    58,518.56x = 87,791.02 × 18,539.96
  4. Step 4: Simplify right side
    58,518.56x = 1,627,641,513.85
  5. Step 5: Solve for x
    x = 1,627,641,513.85/58,518.56
  6. Step 6: Final answer
    x = 27,814.11

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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.