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Finding the Fourth Proportional to 58,162.82, 87,188.76 and 18,692.19

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Solution

The fourth proportional to 58,162.82, 87,188.76 and 18,692.19 is: 28,020.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,162.82 : 87,188.76 = 18,692.19 : x
  2. Step 2: Convert to fraction form
    58,162.82/87,188.76 = 18,692.19/x
  3. Step 3: Cross multiply
    58,162.82x = 87,188.76 × 18,692.19
  4. Step 4: Simplify right side
    58,162.82x = 1,629,748,867.78
  5. Step 5: Solve for x
    x = 1,629,748,867.78/58,162.82
  6. Step 6: Final answer
    x = 28,020.46

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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.