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Finding the Fourth Proportional to 22,695.60, 33,890.41 and 18,543.82

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Solution

The fourth proportional to 22,695.60, 33,890.41 and 18,543.82 is: 27,690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,695.60 : 33,890.41 = 18,543.82 : x
  2. Step 2: Convert to fraction form
    22,695.60/33,890.41 = 18,543.82/x
  3. Step 3: Cross multiply
    22,695.60x = 33,890.41 × 18,543.82
  4. Step 4: Simplify right side
    22,695.60x = 628,457,662.77
  5. Step 5: Solve for x
    x = 628,457,662.77/22,695.60
  6. Step 6: Final answer
    x = 27,690.73

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.