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Finding the Fourth Proportional to 18,419.10, 27,628.62 and 8,552.98

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Solution

The fourth proportional to 18,419.10, 27,628.62 and 8,552.98 is: 12,829.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.10 : 27,628.62 = 8,552.98 : x
  2. Step 2: Convert to fraction form
    18,419.10/27,628.62 = 8,552.98/x
  3. Step 3: Cross multiply
    18,419.10x = 27,628.62 × 8,552.98
  4. Step 4: Simplify right side
    18,419.10x = 236,307,034.29
  5. Step 5: Solve for x
    x = 236,307,034.29/18,419.10
  6. Step 6: Final answer
    x = 12,829.46

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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.