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Finding the Fourth Proportional to 11,663.25, 17,488.68 and 8,550.87

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Solution

The fourth proportional to 11,663.25, 17,488.68 and 8,550.87 is: 12,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,663.25 : 17,488.68 = 8,550.87 : x
  2. Step 2: Convert to fraction form
    11,663.25/17,488.68 = 8,550.87/x
  3. Step 3: Cross multiply
    11,663.25x = 17,488.68 × 8,550.87
  4. Step 4: Simplify right side
    11,663.25x = 149,543,429.15
  5. Step 5: Solve for x
    x = 149,543,429.15/11,663.25
  6. Step 6: Final answer
    x = 12,821.76

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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.