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Finding the Fourth Proportional to 18,028.98, 27,025.25 and 8,655.26

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Solution

The fourth proportional to 18,028.98, 27,025.25 and 8,655.26 is: 12,974.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.98 : 27,025.25 = 8,655.26 : x
  2. Step 2: Convert to fraction form
    18,028.98/27,025.25 = 8,655.26/x
  3. Step 3: Cross multiply
    18,028.98x = 27,025.25 × 8,655.26
  4. Step 4: Simplify right side
    18,028.98x = 233,910,386.91
  5. Step 5: Solve for x
    x = 233,910,386.91/18,028.98
  6. Step 6: Final answer
    x = 12,974.13

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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.