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Finding the Fourth Proportional to 18,266.97, 27,400.50 and 4,415.97

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Solution

The fourth proportional to 18,266.97, 27,400.50 and 4,415.97 is: 6,623.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.97 : 27,400.50 = 4,415.97 : x
  2. Step 2: Convert to fraction form
    18,266.97/27,400.50 = 4,415.97/x
  3. Step 3: Cross multiply
    18,266.97x = 27,400.50 × 4,415.97
  4. Step 4: Simplify right side
    18,266.97x = 120,999,785.99
  5. Step 5: Solve for x
    x = 120,999,785.99/18,266.97
  6. Step 6: Final answer
    x = 6,623.97

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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.