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Finding the Fourth Proportional to 11,187.99, 16,770.78 and 5,348.70

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Solution

The fourth proportional to 11,187.99, 16,770.78 and 5,348.70 is: 8,017.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.99 : 16,770.78 = 5,348.70 : x
  2. Step 2: Convert to fraction form
    11,187.99/16,770.78 = 5,348.70/x
  3. Step 3: Cross multiply
    11,187.99x = 16,770.78 × 5,348.70
  4. Step 4: Simplify right side
    11,187.99x = 89,701,870.99
  5. Step 5: Solve for x
    x = 89,701,870.99/11,187.99
  6. Step 6: Final answer
    x = 8,017.69

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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.