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Finding the Fourth Proportional to 27,957.60, 41,936.40 and 11,325.60

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Solution

The fourth proportional to 27,957.60, 41,936.40 and 11,325.60 is: 16,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,957.60 : 41,936.40 = 11,325.60 : x
  2. Step 2: Convert to fraction form
    27,957.60/41,936.40 = 11,325.60/x
  3. Step 3: Cross multiply
    27,957.60x = 41,936.40 × 11,325.60
  4. Step 4: Simplify right side
    27,957.60x = 474,954,891.84
  5. Step 5: Solve for x
    x = 474,954,891.84/27,957.60
  6. Step 6: Final answer
    x = 16,988.40

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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.