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Finding the Fourth Proportional to 6,468.62, 8,928.27 and 3,952.85

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Solution

The fourth proportional to 6,468.62, 8,928.27 and 3,952.85 is: 5,455.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,468.62 : 8,928.27 = 3,952.85 : x
  2. Step 2: Convert to fraction form
    6,468.62/8,928.27 = 3,952.85/x
  3. Step 3: Cross multiply
    6,468.62x = 8,928.27 × 3,952.85
  4. Step 4: Simplify right side
    6,468.62x = 35,292,117.65
  5. Step 5: Solve for x
    x = 35,292,117.65/6,468.62
  6. Step 6: Final answer
    x = 5,455.89

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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.