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Finding the Fourth Proportional to 18,527.70, 27,791.55 and 8,676.48

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Solution

The fourth proportional to 18,527.70, 27,791.55 and 8,676.48 is: 13,014.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,527.70 : 27,791.55 = 8,676.48 : x
  2. Step 2: Convert to fraction form
    18,527.70/27,791.55 = 8,676.48/x
  3. Step 3: Cross multiply
    18,527.70x = 27,791.55 × 8,676.48
  4. Step 4: Simplify right side
    18,527.70x = 241,132,827.74
  5. Step 5: Solve for x
    x = 241,132,827.74/18,527.70
  6. Step 6: Final answer
    x = 13,014.72

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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.