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Finding the Fourth Proportional to 18,348.81, 27,527.15 and 5,698.31

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Solution

The fourth proportional to 18,348.81, 27,527.15 and 5,698.31 is: 8,548.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.81 : 27,527.15 = 5,698.31 : x
  2. Step 2: Convert to fraction form
    18,348.81/27,527.15 = 5,698.31/x
  3. Step 3: Cross multiply
    18,348.81x = 27,527.15 × 5,698.31
  4. Step 4: Simplify right side
    18,348.81x = 156,858,067.99
  5. Step 5: Solve for x
    x = 156,858,067.99/18,348.81
  6. Step 6: Final answer
    x = 8,548.68

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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.