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Finding the Fourth Proportional to 19,345.50, 29,019.33 and 5,495.58

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Solution

The fourth proportional to 19,345.50, 29,019.33 and 5,495.58 is: 8,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.50 : 29,019.33 = 5,495.58 : x
  2. Step 2: Convert to fraction form
    19,345.50/29,019.33 = 5,495.58/x
  3. Step 3: Cross multiply
    19,345.50x = 29,019.33 × 5,495.58
  4. Step 4: Simplify right side
    19,345.50x = 159,478,049.56
  5. Step 5: Solve for x
    x = 159,478,049.56/19,345.50
  6. Step 6: Final answer
    x = 8,243.68

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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.