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Finding the Fourth Proportional to 58,206.52, 87,270.90 and 18,211.96

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Solution

The fourth proportional to 58,206.52, 87,270.90 and 18,211.96 is: 27,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,206.52 : 87,270.90 = 18,211.96 : x
  2. Step 2: Convert to fraction form
    58,206.52/87,270.90 = 18,211.96/x
  3. Step 3: Cross multiply
    58,206.52x = 87,270.90 × 18,211.96
  4. Step 4: Simplify right side
    58,206.52x = 1,589,374,139.96
  5. Step 5: Solve for x
    x = 1,589,374,139.96/58,206.52
  6. Step 6: Final answer
    x = 27,305.78

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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.