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Finding the Fourth Proportional to 16,398.78, 24,578.94 and 7,043.85

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Solution

The fourth proportional to 16,398.78, 24,578.94 and 7,043.85 is: 10,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,398.78 : 24,578.94 = 7,043.85 : x
  2. Step 2: Convert to fraction form
    16,398.78/24,578.94 = 7,043.85/x
  3. Step 3: Cross multiply
    16,398.78x = 24,578.94 × 7,043.85
  4. Step 4: Simplify right side
    16,398.78x = 173,130,366.52
  5. Step 5: Solve for x
    x = 173,130,366.52/16,398.78
  6. Step 6: Final answer
    x = 10,557.52

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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.