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Finding the Fourth Proportional to 62,828.80, 86,693.28 and 41,636.80

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Solution

The fourth proportional to 62,828.80, 86,693.28 and 41,636.80 is: 57,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,828.80 : 86,693.28 = 41,636.80 : x
  2. Step 2: Convert to fraction form
    62,828.80/86,693.28 = 41,636.80/x
  3. Step 3: Cross multiply
    62,828.80x = 86,693.28 × 41,636.80
  4. Step 4: Simplify right side
    62,828.80x = 3,609,630,760.70
  5. Step 5: Solve for x
    x = 3,609,630,760.70/62,828.80
  6. Step 6: Final answer
    x = 57,451.85

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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.