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Finding the Fourth Proportional to 22,231.70, 33,347.55 and 11,863.70

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Solution

The fourth proportional to 22,231.70, 33,347.55 and 11,863.70 is: 17,795.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,231.70 : 33,347.55 = 11,863.70 : x
  2. Step 2: Convert to fraction form
    22,231.70/33,347.55 = 11,863.70/x
  3. Step 3: Cross multiply
    22,231.70x = 33,347.55 × 11,863.70
  4. Step 4: Simplify right side
    22,231.70x = 395,625,328.94
  5. Step 5: Solve for x
    x = 395,625,328.94/22,231.70
  6. Step 6: Final answer
    x = 17,795.55

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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.