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Finding the Fourth Proportional to 6,519.88, 9,789.54 and 4,575.88

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Solution

The fourth proportional to 6,519.88, 9,789.54 and 4,575.88 is: 6,870.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.88 : 9,789.54 = 4,575.88 : x
  2. Step 2: Convert to fraction form
    6,519.88/9,789.54 = 4,575.88/x
  3. Step 3: Cross multiply
    6,519.88x = 9,789.54 × 4,575.88
  4. Step 4: Simplify right side
    6,519.88x = 44,795,760.30
  5. Step 5: Solve for x
    x = 44,795,760.30/6,519.88
  6. Step 6: Final answer
    x = 6,870.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.