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Finding the Fourth Proportional to 18,551.42, 27,818.66 and 8,016.48

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Solution

The fourth proportional to 18,551.42, 27,818.66 and 8,016.48 is: 12,021.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.42 : 27,818.66 = 8,016.48 : x
  2. Step 2: Convert to fraction form
    18,551.42/27,818.66 = 8,016.48/x
  3. Step 3: Cross multiply
    18,551.42x = 27,818.66 × 8,016.48
  4. Step 4: Simplify right side
    18,551.42x = 223,007,731.52
  5. Step 5: Solve for x
    x = 223,007,731.52/18,551.42
  6. Step 6: Final answer
    x = 12,021.06

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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.