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Finding the Fourth Proportional to 16,618.78, 24,942.75 and 9,231.58

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Solution

The fourth proportional to 16,618.78, 24,942.75 and 9,231.58 is: 13,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.78 : 24,942.75 = 9,231.58 : x
  2. Step 2: Convert to fraction form
    16,618.78/24,942.75 = 9,231.58/x
  3. Step 3: Cross multiply
    16,618.78x = 24,942.75 × 9,231.58
  4. Step 4: Simplify right side
    16,618.78x = 230,260,821.17
  5. Step 5: Solve for x
    x = 230,260,821.17/16,618.78
  6. Step 6: Final answer
    x = 13,855.46

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1.5x scale

Why These Related Problems?

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