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Finding the Fourth Proportional to 18,029.17, 27,025.51 and 8,655.49

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Solution

The fourth proportional to 18,029.17, 27,025.51 and 8,655.49 is: 12,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,029.17 : 27,025.51 = 8,655.49 : x
  2. Step 2: Convert to fraction form
    18,029.17/27,025.51 = 8,655.49/x
  3. Step 3: Cross multiply
    18,029.17x = 27,025.51 × 8,655.49
  4. Step 4: Simplify right side
    18,029.17x = 233,919,031.55
  5. Step 5: Solve for x
    x = 233,919,031.55/18,029.17
  6. Step 6: Final answer
    x = 12,974.48

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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.