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Finding the Fourth Proportional to 11,203.87, 16,805.80 and 4,622.82

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Solution

The fourth proportional to 11,203.87, 16,805.80 and 4,622.82 is: 6,934.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203.87 : 16,805.80 = 4,622.82 : x
  2. Step 2: Convert to fraction form
    11,203.87/16,805.80 = 4,622.82/x
  3. Step 3: Cross multiply
    11,203.87x = 16,805.80 × 4,622.82
  4. Step 4: Simplify right side
    11,203.87x = 77,690,188.36
  5. Step 5: Solve for x
    x = 77,690,188.36/11,203.87
  6. Step 6: Final answer
    x = 6,934.23

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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.