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Finding the Fourth Proportional to 58,231.83, 87,344.67 and 18,788.97

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Solution

The fourth proportional to 58,231.83, 87,344.67 and 18,788.97 is: 28,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,231.83 : 87,344.67 = 18,788.97 : x
  2. Step 2: Convert to fraction form
    58,231.83/87,344.67 = 18,788.97/x
  3. Step 3: Cross multiply
    58,231.83x = 87,344.67 × 18,788.97
  4. Step 4: Simplify right side
    58,231.83x = 1,641,116,384.29
  5. Step 5: Solve for x
    x = 1,641,116,384.29/58,231.83
  6. Step 6: Final answer
    x = 28,182.46

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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.