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Finding the Fourth Proportional to 11,841.80, 16,117.96 and 11,841.80

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Solution

The fourth proportional to 11,841.80, 16,117.96 and 11,841.80 is: 16,117.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,841.80 : 16,117.96 = 11,841.80 : x
  2. Step 2: Convert to fraction form
    11,841.80/16,117.96 = 11,841.80/x
  3. Step 3: Cross multiply
    11,841.80x = 16,117.96 × 11,841.80
  4. Step 4: Simplify right side
    11,841.80x = 190,865,658.73
  5. Step 5: Solve for x
    x = 190,865,658.73/11,841.80
  6. Step 6: Final answer
    x = 16,117.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.