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Finding the Fourth Proportional to 29,615.20, 44,455.20 and 18,534.40

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Solution

The fourth proportional to 29,615.20, 44,455.20 and 18,534.40 is: 27,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,615.20 : 44,455.20 = 18,534.40 : x
  2. Step 2: Convert to fraction form
    29,615.20/44,455.20 = 18,534.40/x
  3. Step 3: Cross multiply
    29,615.20x = 44,455.20 × 18,534.40
  4. Step 4: Simplify right side
    29,615.20x = 823,950,458.88
  5. Step 5: Solve for x
    x = 823,950,458.88/29,615.20
  6. Step 6: Final answer
    x = 27,821.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.