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Finding the Fourth Proportional to 18,167.90, 27,240.03 and 8,676.32

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Solution

The fourth proportional to 18,167.90, 27,240.03 and 8,676.32 is: 13,008.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.90 : 27,240.03 = 8,676.32 : x
  2. Step 2: Convert to fraction form
    18,167.90/27,240.03 = 8,676.32/x
  3. Step 3: Cross multiply
    18,167.90x = 27,240.03 × 8,676.32
  4. Step 4: Simplify right side
    18,167.90x = 236,343,080.89
  5. Step 5: Solve for x
    x = 236,343,080.89/18,167.90
  6. Step 6: Final answer
    x = 13,008.83

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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.