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Finding the Fourth Proportional to 9,950.43, 13,731.99 and 5,474.55

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Solution

The fourth proportional to 9,950.43, 13,731.99 and 5,474.55 is: 7,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,950.43 : 13,731.99 = 5,474.55 : x
  2. Step 2: Convert to fraction form
    9,950.43/13,731.99 = 5,474.55/x
  3. Step 3: Cross multiply
    9,950.43x = 13,731.99 × 5,474.55
  4. Step 4: Simplify right side
    9,950.43x = 75,176,465.85
  5. Step 5: Solve for x
    x = 75,176,465.85/9,950.43
  6. Step 6: Final answer
    x = 7,555.10

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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.