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Finding the Fourth Proportional to 23,221.84, 34,855.84 and 18,083.92

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Solution

The fourth proportional to 23,221.84, 34,855.84 and 18,083.92 is: 27,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,221.84 : 34,855.84 = 18,083.92 : x
  2. Step 2: Convert to fraction form
    23,221.84/34,855.84 = 18,083.92/x
  3. Step 3: Cross multiply
    23,221.84x = 34,855.84 × 18,083.92
  4. Step 4: Simplify right side
    23,221.84x = 630,330,222.09
  5. Step 5: Solve for x
    x = 630,330,222.09/23,221.84
  6. Step 6: Final answer
    x = 27,143.85

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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.