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Finding the Fourth Proportional to 27,957.80, 41,936.70 and 16,898.60

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Solution

The fourth proportional to 27,957.80, 41,936.70 and 16,898.60 is: 25,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,957.80 : 41,936.70 = 16,898.60 : x
  2. Step 2: Convert to fraction form
    27,957.80/41,936.70 = 16,898.60/x
  3. Step 3: Cross multiply
    27,957.80x = 41,936.70 × 16,898.60
  4. Step 4: Simplify right side
    27,957.80x = 708,671,518.62
  5. Step 5: Solve for x
    x = 708,671,518.62/27,957.80
  6. Step 6: Final answer
    x = 25,347.90

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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.