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Finding the Fourth Proportional to 18,700.20, 27,940.76 and 18,046.14

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Solution

The fourth proportional to 18,700.20, 27,940.76 and 18,046.14 is: 26,963.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.20 : 27,940.76 = 18,046.14 : x
  2. Step 2: Convert to fraction form
    18,700.20/27,940.76 = 18,046.14/x
  3. Step 3: Cross multiply
    18,700.20x = 27,940.76 × 18,046.14
  4. Step 4: Simplify right side
    18,700.20x = 504,222,866.67
  5. Step 5: Solve for x
    x = 504,222,866.67/18,700.20
  6. Step 6: Final answer
    x = 26,963.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.