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Finding the Fourth Proportional to 18,789.27, 28,184.76 and 10,463.01

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Solution

The fourth proportional to 18,789.27, 28,184.76 and 10,463.01 is: 15,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.27 : 28,184.76 = 10,463.01 : x
  2. Step 2: Convert to fraction form
    18,789.27/28,184.76 = 10,463.01/x
  3. Step 3: Cross multiply
    18,789.27x = 28,184.76 × 10,463.01
  4. Step 4: Simplify right side
    18,789.27x = 294,897,425.73
  5. Step 5: Solve for x
    x = 294,897,425.73/18,789.27
  6. Step 6: Final answer
    x = 15,694.99

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1.5x scale

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.