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Finding the Fourth Proportional to 77,609.56, 116,414.22 and 22,205.56

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Solution

The fourth proportional to 77,609.56, 116,414.22 and 22,205.56 is: 33,308.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,609.56 : 116,414.22 = 22,205.56 : x
  2. Step 2: Convert to fraction form
    77,609.56/116,414.22 = 22,205.56/x
  3. Step 3: Cross multiply
    77,609.56x = 116,414.22 × 22,205.56
  4. Step 4: Simplify right side
    77,609.56x = 2,585,042,947.06
  5. Step 5: Solve for x
    x = 2,585,042,947.06/77,609.56
  6. Step 6: Final answer
    x = 33,308.31

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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.