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Finding the Fourth Proportional to 5,049.69, 7,574.94 and 1,539.99

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Solution

The fourth proportional to 5,049.69, 7,574.94 and 1,539.99 is: 2,310.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,049.69 : 7,574.94 = 1,539.99 : x
  2. Step 2: Convert to fraction form
    5,049.69/7,574.94 = 1,539.99/x
  3. Step 3: Cross multiply
    5,049.69x = 7,574.94 × 1,539.99
  4. Step 4: Simplify right side
    5,049.69x = 11,665,331.85
  5. Step 5: Solve for x
    x = 11,665,331.85/5,049.69
  6. Step 6: Final answer
    x = 2,310.11

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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.