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Finding the Fourth Proportional to 16,901.78, 25,375.66 and 9,511.44

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Solution

The fourth proportional to 16,901.78, 25,375.66 and 9,511.44 is: 14,280.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,901.78 : 25,375.66 = 9,511.44 : x
  2. Step 2: Convert to fraction form
    16,901.78/25,375.66 = 9,511.44/x
  3. Step 3: Cross multiply
    16,901.78x = 25,375.66 × 9,511.44
  4. Step 4: Simplify right side
    16,901.78x = 241,359,067.55
  5. Step 5: Solve for x
    x = 241,359,067.55/16,901.78
  6. Step 6: Final answer
    x = 14,280.10

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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.