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Finding the Fourth Proportional to 18,467.72, 27,682.43 and 8,598.89

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Solution

The fourth proportional to 18,467.72, 27,682.43 and 8,598.89 is: 12,889.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,467.72 : 27,682.43 = 8,598.89 : x
  2. Step 2: Convert to fraction form
    18,467.72/27,682.43 = 8,598.89/x
  3. Step 3: Cross multiply
    18,467.72x = 27,682.43 × 8,598.89
  4. Step 4: Simplify right side
    18,467.72x = 238,037,989.10
  5. Step 5: Solve for x
    x = 238,037,989.10/18,467.72
  6. Step 6: Final answer
    x = 12,889.41

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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.