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Finding the Fourth Proportional to 11,292.99, 16,940.02 and 5,454.51

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Solution

The fourth proportional to 11,292.99, 16,940.02 and 5,454.51 is: 8,182.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,292.99 : 16,940.02 = 5,454.51 : x
  2. Step 2: Convert to fraction form
    11,292.99/16,940.02 = 5,454.51/x
  3. Step 3: Cross multiply
    11,292.99x = 16,940.02 × 5,454.51
  4. Step 4: Simplify right side
    11,292.99x = 92,399,508.49
  5. Step 5: Solve for x
    x = 92,399,508.49/11,292.99
  6. Step 6: Final answer
    x = 8,182.02

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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.