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Finding the Fourth Proportional to 58,071.69, 87,118.88 and 18,625.77

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Solution

The fourth proportional to 58,071.69, 87,118.88 and 18,625.77 is: 27,942.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,071.69 : 87,118.88 = 18,625.77 : x
  2. Step 2: Convert to fraction form
    58,071.69/87,118.88 = 18,625.77/x
  3. Step 3: Cross multiply
    58,071.69x = 87,118.88 × 18,625.77
  4. Step 4: Simplify right side
    58,071.69x = 1,622,656,128.41
  5. Step 5: Solve for x
    x = 1,622,656,128.41/58,071.69
  6. Step 6: Final answer
    x = 27,942.29

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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.