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Finding the Fourth Proportional to 6,555.80, 9,046.91 and 3,723.15

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Solution

The fourth proportional to 6,555.80, 9,046.91 and 3,723.15 is: 5,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.80 : 9,046.91 = 3,723.15 : x
  2. Step 2: Convert to fraction form
    6,555.80/9,046.91 = 3,723.15/x
  3. Step 3: Cross multiply
    6,555.80x = 9,046.91 × 3,723.15
  4. Step 4: Simplify right side
    6,555.80x = 33,682,984.35
  5. Step 5: Solve for x
    x = 33,682,984.35/6,555.80
  6. Step 6: Final answer
    x = 5,137.89

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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.