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Finding the Fourth Proportional to 16,483.97, 22,751.09 and 12,891.80

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Solution

The fourth proportional to 16,483.97, 22,751.09 and 12,891.80 is: 17,793.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,483.97 : 22,751.09 = 12,891.80 : x
  2. Step 2: Convert to fraction form
    16,483.97/22,751.09 = 12,891.80/x
  3. Step 3: Cross multiply
    16,483.97x = 22,751.09 × 12,891.80
  4. Step 4: Simplify right side
    16,483.97x = 293,302,323.85
  5. Step 5: Solve for x
    x = 293,302,323.85/16,483.97
  6. Step 6: Final answer
    x = 17,793.19

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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.