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Finding the Fourth Proportional to 18,070.97, 27,092.56 and 9,178.99

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Solution

The fourth proportional to 18,070.97, 27,092.56 and 9,178.99 is: 13,761.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,070.97 : 27,092.56 = 9,178.99 : x
  2. Step 2: Convert to fraction form
    18,070.97/27,092.56 = 9,178.99/x
  3. Step 3: Cross multiply
    18,070.97x = 27,092.56 × 9,178.99
  4. Step 4: Simplify right side
    18,070.97x = 248,682,291.42
  5. Step 5: Solve for x
    x = 248,682,291.42/18,070.97
  6. Step 6: Final answer
    x = 13,761.43

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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.