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Finding the Fourth Proportional to 57,963.94, 86,958.40 and 17,982.12

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Solution

The fourth proportional to 57,963.94, 86,958.40 and 17,982.12 is: 26,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,963.94 : 86,958.40 = 17,982.12 : x
  2. Step 2: Convert to fraction form
    57,963.94/86,958.40 = 17,982.12/x
  3. Step 3: Cross multiply
    57,963.94x = 86,958.40 × 17,982.12
  4. Step 4: Simplify right side
    57,963.94x = 1,563,696,383.81
  5. Step 5: Solve for x
    x = 1,563,696,383.81/57,963.94
  6. Step 6: Final answer
    x = 26,977.05

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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.