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Finding the Fourth Proportional to 11,212.73, 16,822.73 and 5,369.75

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Solution

The fourth proportional to 11,212.73, 16,822.73 and 5,369.75 is: 8,056.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.73 : 16,822.73 = 5,369.75 : x
  2. Step 2: Convert to fraction form
    11,212.73/16,822.73 = 5,369.75/x
  3. Step 3: Cross multiply
    11,212.73x = 16,822.73 × 5,369.75
  4. Step 4: Simplify right side
    11,212.73x = 90,333,854.42
  5. Step 5: Solve for x
    x = 90,333,854.42/11,212.73
  6. Step 6: Final answer
    x = 8,056.37

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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.