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Finding the Fourth Proportional to 22,361.74, 33,543.76 and 5,721.92

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Solution

The fourth proportional to 22,361.74, 33,543.76 and 5,721.92 is: 8,583.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.74 : 33,543.76 = 5,721.92 : x
  2. Step 2: Convert to fraction form
    22,361.74/33,543.76 = 5,721.92/x
  3. Step 3: Cross multiply
    22,361.74x = 33,543.76 × 5,721.92
  4. Step 4: Simplify right side
    22,361.74x = 191,934,711.22
  5. Step 5: Solve for x
    x = 191,934,711.22/22,361.74
  6. Step 6: Final answer
    x = 8,583.17

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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.