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Finding the Fourth Proportional to 7,855.99, 11,760.59 and 5,074.55

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Solution

The fourth proportional to 7,855.99, 11,760.59 and 5,074.55 is: 7,596.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.99 : 11,760.59 = 5,074.55 : x
  2. Step 2: Convert to fraction form
    7,855.99/11,760.59 = 5,074.55/x
  3. Step 3: Cross multiply
    7,855.99x = 11,760.59 × 5,074.55
  4. Step 4: Simplify right side
    7,855.99x = 59,679,699.97
  5. Step 5: Solve for x
    x = 59,679,699.97/7,855.99
  6. Step 6: Final answer
    x = 7,596.72

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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.