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Finding the Fourth Proportional to 28,992.44, 43,488.82 and 8,215.96

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Solution

The fourth proportional to 28,992.44, 43,488.82 and 8,215.96 is: 12,323.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.44 : 43,488.82 = 8,215.96 : x
  2. Step 2: Convert to fraction form
    28,992.44/43,488.82 = 8,215.96/x
  3. Step 3: Cross multiply
    28,992.44x = 43,488.82 × 8,215.96
  4. Step 4: Simplify right side
    28,992.44x = 357,302,405.57
  5. Step 5: Solve for x
    x = 357,302,405.57/28,992.44
  6. Step 6: Final answer
    x = 12,323.99

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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.