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Finding the Fourth Proportional to 4,518.49, 6,728.12 and 4,468.88

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Solution

The fourth proportional to 4,518.49, 6,728.12 and 4,468.88 is: 6,654.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.49 : 6,728.12 = 4,468.88 : x
  2. Step 2: Convert to fraction form
    4,518.49/6,728.12 = 4,468.88/x
  3. Step 3: Cross multiply
    4,518.49x = 6,728.12 × 4,468.88
  4. Step 4: Simplify right side
    4,518.49x = 30,067,163.67
  5. Step 5: Solve for x
    x = 30,067,163.67/4,518.49
  6. Step 6: Final answer
    x = 6,654.25

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.