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Finding the Fourth Proportional to 57,383.76, 86,078.20 and 17,941.68

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Solution

The fourth proportional to 57,383.76, 86,078.20 and 17,941.68 is: 26,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,383.76 : 86,078.20 = 17,941.68 : x
  2. Step 2: Convert to fraction form
    57,383.76/86,078.20 = 17,941.68/x
  3. Step 3: Cross multiply
    57,383.76x = 86,078.20 × 17,941.68
  4. Step 4: Simplify right side
    57,383.76x = 1,544,387,519.38
  5. Step 5: Solve for x
    x = 1,544,387,519.38/57,383.76
  6. Step 6: Final answer
    x = 26,913.32

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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.