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Finding the Fourth Proportional to 18,775.84, 28,169.07 and 9,404.54

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Solution

The fourth proportional to 18,775.84, 28,169.07 and 9,404.54 is: 14,109.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.84 : 28,169.07 = 9,404.54 : x
  2. Step 2: Convert to fraction form
    18,775.84/28,169.07 = 9,404.54/x
  3. Step 3: Cross multiply
    18,775.84x = 28,169.07 × 9,404.54
  4. Step 4: Simplify right side
    18,775.84x = 264,917,145.58
  5. Step 5: Solve for x
    x = 264,917,145.58/18,775.84
  6. Step 6: Final answer
    x = 14,109.47

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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.