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Finding the Fourth Proportional to 22,612.59, 33,918.87 and 7,821.62

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Solution

The fourth proportional to 22,612.59, 33,918.87 and 7,821.62 is: 11,732.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.59 : 33,918.87 = 7,821.62 : x
  2. Step 2: Convert to fraction form
    22,612.59/33,918.87 = 7,821.62/x
  3. Step 3: Cross multiply
    22,612.59x = 33,918.87 × 7,821.62
  4. Step 4: Simplify right side
    22,612.59x = 265,300,511.97
  5. Step 5: Solve for x
    x = 265,300,511.97/22,612.59
  6. Step 6: Final answer
    x = 11,732.42

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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.