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Finding the Fourth Proportional to 58,447.67, 87,681.83 and 18,997.83

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Solution

The fourth proportional to 58,447.67, 87,681.83 and 18,997.83 is: 28,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,447.67 : 87,681.83 = 18,997.83 : x
  2. Step 2: Convert to fraction form
    58,447.67/87,681.83 = 18,997.83/x
  3. Step 3: Cross multiply
    58,447.67x = 87,681.83 × 18,997.83
  4. Step 4: Simplify right side
    58,447.67x = 1,665,764,405.44
  5. Step 5: Solve for x
    x = 1,665,764,405.44/58,447.67
  6. Step 6: Final answer
    x = 28,500.10

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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.