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Finding the Fourth Proportional to 19,453.16, 29,179.74 and 15,539.24

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Solution

The fourth proportional to 19,453.16, 29,179.74 and 15,539.24 is: 23,308.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,453.16 : 29,179.74 = 15,539.24 : x
  2. Step 2: Convert to fraction form
    19,453.16/29,179.74 = 15,539.24/x
  3. Step 3: Cross multiply
    19,453.16x = 29,179.74 × 15,539.24
  4. Step 4: Simplify right side
    19,453.16x = 453,430,983.00
  5. Step 5: Solve for x
    x = 453,430,983.00/19,453.16
  6. Step 6: Final answer
    x = 23,308.86

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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.