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Finding the Fourth Proportional to 18,387.27, 27,574.87 and 5,904.34

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Solution

The fourth proportional to 18,387.27, 27,574.87 and 5,904.34 is: 8,854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.27 : 27,574.87 = 5,904.34 : x
  2. Step 2: Convert to fraction form
    18,387.27/27,574.87 = 5,904.34/x
  3. Step 3: Cross multiply
    18,387.27x = 27,574.87 × 5,904.34
  4. Step 4: Simplify right side
    18,387.27x = 162,811,270.06
  5. Step 5: Solve for x
    x = 162,811,270.06/18,387.27
  6. Step 6: Final answer
    x = 8,854.56

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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.