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Finding the Fourth Proportional to 6,739.88, 9,300.80 and 3,755.56

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Solution

The fourth proportional to 6,739.88, 9,300.80 and 3,755.56 is: 5,182.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,739.88 : 9,300.80 = 3,755.56 : x
  2. Step 2: Convert to fraction form
    6,739.88/9,300.80 = 3,755.56/x
  3. Step 3: Cross multiply
    6,739.88x = 9,300.80 × 3,755.56
  4. Step 4: Simplify right side
    6,739.88x = 34,929,712.45
  5. Step 5: Solve for x
    x = 34,929,712.45/6,739.88
  6. Step 6: Final answer
    x = 5,182.54

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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.