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Finding the Fourth Proportional to 23,796.90, 32,855.76 and 21,270.92

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Solution

The fourth proportional to 23,796.90, 32,855.76 and 21,270.92 is: 29,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,796.90 : 32,855.76 = 21,270.92 : x
  2. Step 2: Convert to fraction form
    23,796.90/32,855.76 = 21,270.92/x
  3. Step 3: Cross multiply
    23,796.90x = 32,855.76 × 21,270.92
  4. Step 4: Simplify right side
    23,796.90x = 698,872,078.22
  5. Step 5: Solve for x
    x = 698,872,078.22/23,796.90
  6. Step 6: Final answer
    x = 29,368.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.