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Finding the Fourth Proportional to 11,083.80, 16,633.80 and 7,803.30

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Solution

The fourth proportional to 11,083.80, 16,633.80 and 7,803.30 is: 11,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,083.80 : 16,633.80 = 7,803.30 : x
  2. Step 2: Convert to fraction form
    11,083.80/16,633.80 = 7,803.30/x
  3. Step 3: Cross multiply
    11,083.80x = 16,633.80 × 7,803.30
  4. Step 4: Simplify right side
    11,083.80x = 129,798,531.54
  5. Step 5: Solve for x
    x = 129,798,531.54/11,083.80
  6. Step 6: Final answer
    x = 11,710.65

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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.