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Finding the Fourth Proportional to 18,255.51, 27,372.06 and 7,167.42

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Solution

The fourth proportional to 18,255.51, 27,372.06 and 7,167.42 is: 10,746.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.51 : 27,372.06 = 7,167.42 : x
  2. Step 2: Convert to fraction form
    18,255.51/27,372.06 = 7,167.42/x
  3. Step 3: Cross multiply
    18,255.51x = 27,372.06 × 7,167.42
  4. Step 4: Simplify right side
    18,255.51x = 196,187,050.29
  5. Step 5: Solve for x
    x = 196,187,050.29/18,255.51
  6. Step 6: Final answer
    x = 10,746.73

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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.