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Finding the Fourth Proportional to 9,963.73, 13,753.41 and 6,189.80

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Solution

The fourth proportional to 9,963.73, 13,753.41 and 6,189.80 is: 8,544.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963.73 : 13,753.41 = 6,189.80 : x
  2. Step 2: Convert to fraction form
    9,963.73/13,753.41 = 6,189.80/x
  3. Step 3: Cross multiply
    9,963.73x = 13,753.41 × 6,189.80
  4. Step 4: Simplify right side
    9,963.73x = 85,130,857.22
  5. Step 5: Solve for x
    x = 85,130,857.22/9,963.73
  6. Step 6: Final answer
    x = 8,544.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.