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Finding the Fourth Proportional to 18,257.94, 27,355.14 and 17,821.98

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Solution

The fourth proportional to 18,257.94, 27,355.14 and 17,821.98 is: 26,701.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.94 : 27,355.14 = 17,821.98 : x
  2. Step 2: Convert to fraction form
    18,257.94/27,355.14 = 17,821.98/x
  3. Step 3: Cross multiply
    18,257.94x = 27,355.14 × 17,821.98
  4. Step 4: Simplify right side
    18,257.94x = 487,522,757.98
  5. Step 5: Solve for x
    x = 487,522,757.98/18,257.94
  6. Step 6: Final answer
    x = 26,701.96

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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.