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Finding the Fourth Proportional to 30,281.90, 41,791.29 and 17,538.53

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Solution

The fourth proportional to 30,281.90, 41,791.29 and 17,538.53 is: 24,204.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,281.90 : 41,791.29 = 17,538.53 : x
  2. Step 2: Convert to fraction form
    30,281.90/41,791.29 = 17,538.53/x
  3. Step 3: Cross multiply
    30,281.90x = 41,791.29 × 17,538.53
  4. Step 4: Simplify right side
    30,281.90x = 732,957,617.33
  5. Step 5: Solve for x
    x = 732,957,617.33/30,281.90
  6. Step 6: Final answer
    x = 24,204.48

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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.