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Finding the Fourth Proportional to 6,660.80, 9,231.59 and 6,536.24

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Solution

The fourth proportional to 6,660.80, 9,231.59 and 6,536.24 is: 9,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.80 : 9,231.59 = 6,536.24 : x
  2. Step 2: Convert to fraction form
    6,660.80/9,231.59 = 6,536.24/x
  3. Step 3: Cross multiply
    6,660.80x = 9,231.59 × 6,536.24
  4. Step 4: Simplify right side
    6,660.80x = 60,339,907.78
  5. Step 5: Solve for x
    x = 60,339,907.78/6,660.80
  6. Step 6: Final answer
    x = 9,058.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.