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Finding the Fourth Proportional to 18,158.88, 27,240.09 and 7,066.47

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Solution

The fourth proportional to 18,158.88, 27,240.09 and 7,066.47 is: 10,600.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.88 : 27,240.09 = 7,066.47 : x
  2. Step 2: Convert to fraction form
    18,158.88/27,240.09 = 7,066.47/x
  3. Step 3: Cross multiply
    18,158.88x = 27,240.09 × 7,066.47
  4. Step 4: Simplify right side
    18,158.88x = 192,491,278.78
  5. Step 5: Solve for x
    x = 192,491,278.78/18,158.88
  6. Step 6: Final answer
    x = 10,600.39

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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.