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Finding the Fourth Proportional to 22,609.63, 33,902.15 and 7,817.31

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Solution

The fourth proportional to 22,609.63, 33,902.15 and 7,817.31 is: 11,721.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,609.63 : 33,902.15 = 7,817.31 : x
  2. Step 2: Convert to fraction form
    22,609.63/33,902.15 = 7,817.31/x
  3. Step 3: Cross multiply
    22,609.63x = 33,902.15 × 7,817.31
  4. Step 4: Simplify right side
    22,609.63x = 265,023,577.13
  5. Step 5: Solve for x
    x = 265,023,577.13/22,609.63
  6. Step 6: Final answer
    x = 11,721.71

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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.