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Finding the Fourth Proportional to 3,755.79, 5,155.22 and 3,326.76

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Solution

The fourth proportional to 3,755.79, 5,155.22 and 3,326.76 is: 4,566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.79 : 5,155.22 = 3,326.76 : x
  2. Step 2: Convert to fraction form
    3,755.79/5,155.22 = 3,326.76/x
  3. Step 3: Cross multiply
    3,755.79x = 5,155.22 × 3,326.76
  4. Step 4: Simplify right side
    3,755.79x = 17,150,188.00
  5. Step 5: Solve for x
    x = 17,150,188.00/3,755.79
  6. Step 6: Final answer
    x = 4,566.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.