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Finding the Fourth Proportional to 16,295.78, 22,488.12 and 8,843.78

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Solution

The fourth proportional to 16,295.78, 22,488.12 and 8,843.78 is: 12,204.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,295.78 : 22,488.12 = 8,843.78 : x
  2. Step 2: Convert to fraction form
    16,295.78/22,488.12 = 8,843.78/x
  3. Step 3: Cross multiply
    16,295.78x = 22,488.12 × 8,843.78
  4. Step 4: Simplify right side
    16,295.78x = 198,879,985.89
  5. Step 5: Solve for x
    x = 198,879,985.89/16,295.78
  6. Step 6: Final answer
    x = 12,204.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.