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Finding the Fourth Proportional to 58,636.93, 80,918.93 and 31,779.44

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Solution

The fourth proportional to 58,636.93, 80,918.93 and 31,779.44 is: 43,855.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,636.93 : 80,918.93 = 31,779.44 : x
  2. Step 2: Convert to fraction form
    58,636.93/80,918.93 = 31,779.44/x
  3. Step 3: Cross multiply
    58,636.93x = 80,918.93 × 31,779.44
  4. Step 4: Simplify right side
    58,636.93x = 2,571,558,280.80
  5. Step 5: Solve for x
    x = 2,571,558,280.80/58,636.93
  6. Step 6: Final answer
    x = 43,855.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.