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Finding the Fourth Proportional to 11,216.88, 16,782.99 and 6,697.19

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Solution

The fourth proportional to 11,216.88, 16,782.99 and 6,697.19 is: 10,020.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.88 : 16,782.99 = 6,697.19 : x
  2. Step 2: Convert to fraction form
    11,216.88/16,782.99 = 6,697.19/x
  3. Step 3: Cross multiply
    11,216.88x = 16,782.99 × 6,697.19
  4. Step 4: Simplify right side
    11,216.88x = 112,398,872.80
  5. Step 5: Solve for x
    x = 112,398,872.80/11,216.88
  6. Step 6: Final answer
    x = 10,020.51

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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.