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Finding the Fourth Proportional to 8,212.97, 11,333.95 and 4,486.97

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Solution

The fourth proportional to 8,212.97, 11,333.95 and 4,486.97 is: 6,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,212.97 : 11,333.95 = 4,486.97 : x
  2. Step 2: Convert to fraction form
    8,212.97/11,333.95 = 4,486.97/x
  3. Step 3: Cross multiply
    8,212.97x = 11,333.95 × 4,486.97
  4. Step 4: Simplify right side
    8,212.97x = 50,855,093.63
  5. Step 5: Solve for x
    x = 50,855,093.63/8,212.97
  6. Step 6: Final answer
    x = 6,192.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.